(svn r20411) -Codechange: rename unmovables as quite a lot of them are actually movable; e.g. HQ and owned land are pretty movable.

94 files changed, 696 insertions, 696 deletions

diff --git a/src/ai/api/ai_company.cpp b/src/ai/api/ai_company.cpp
index f9c352d9d..e11b2bb4b 100644
--- a/src/ai/api/ai_company.cpp
+++ b/src/ai/api/ai_company.cpp
@@ -16,11 +16,11 @@
 #include "../../company_base.h"
 #include "../../company_manager_face.h"
 #include "../../economy_func.h"
+#include "../../object_type.h"
 #include "../../strings_func.h"
 #include "../../tile_map.h"
 #include "../../string_func.h"
 #include "../../settings_func.h"
-#include "../../unmovable_type.h"
 #include "table/strings.h"
 
 /* static */ AICompany::CompanyID AICompany::ResolveCompanyID(AICompany::CompanyID company)
@@ -163,7 +163,7 @@
 {
 	EnforcePrecondition(false, ::IsValidTile(tile));
 
-	return AIObject::DoCommand(tile, UNMOVABLE_HQ, 0, CMD_BUILD_UNMOVABLE);
+	return AIObject::DoCommand(tile, OBJECT_HQ, 0, CMD_BUILD_OBJECT);
 }
 
 /* static */ TileIndex AICompany::GetCompanyHQ(CompanyID company)
diff --git a/src/ai/api/ai_error.hpp b/src/ai/api/ai_error.hpp
index e26944eae..c2dd8ba95 100644
--- a/src/ai/api/ai_error.hpp
+++ b/src/ai/api/ai_error.hpp
@@ -99,7 +99,7 @@ public:
 		ERR_ALREADY_BUILT,                            // [STR_ERROR_ALREADY_BUILT, STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST]
 
 		/** Area isn't clear, try to demolish the building on it */
-		ERR_AREA_NOT_CLEAR,                           // [STR_ERROR_BUILDING_MUST_BE_DEMOLISHED, STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST, STR_ERROR_MUST_DEMOLISH_RAILROAD, STR_ERROR_MUST_DEMOLISH_AIRPORT_FIRST, STR_ERROR_MUST_DEMOLISH_CARGO_TRAM_STATION_FIRST, STR_ERROR_MUST_DEMOLISH_TRUCK_STATION_FIRST, STR_ERROR_MUST_DEMOLISH_PASSENGER_TRAM_STATION_FIRST, STR_ERROR_MUST_DEMOLISH_BUS_STATION_FIRST, STR_ERROR_BUOY_IN_THE_WAY, STR_ERROR_MUST_DEMOLISH_DOCK_FIRST, STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY, STR_ERROR_COMPANY_HEADQUARTERS_IN, STR_ERROR_OBJECT_IN_THE_WAY, STR_ERROR_MUST_REMOVE_ROAD_FIRST, STR_ERROR_MUST_REMOVE_RAILROAD_TRACK, STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST, STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST, STR_ERROR_EXCAVATION_WOULD_DAMAGE]
+		ERR_AREA_NOT_CLEAR,                           // [STR_ERROR_BUILDING_MUST_BE_DEMOLISHED, STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST, STR_ERROR_MUST_DEMOLISH_RAILROAD, STR_ERROR_MUST_DEMOLISH_AIRPORT_FIRST, STR_ERROR_MUST_DEMOLISH_CARGO_TRAM_STATION_FIRST, STR_ERROR_MUST_DEMOLISH_TRUCK_STATION_FIRST, STR_ERROR_MUST_DEMOLISH_PASSENGER_TRAM_STATION_FIRST, STR_ERROR_MUST_DEMOLISH_BUS_STATION_FIRST, STR_ERROR_BUOY_IN_THE_WAY, STR_ERROR_MUST_DEMOLISH_DOCK_FIRST, STR_ERROR_GENERIC_OBJECT_IN_THE_WAY, STR_ERROR_COMPANY_HEADQUARTERS_IN, STR_ERROR_OBJECT_IN_THE_WAY, STR_ERROR_MUST_REMOVE_ROAD_FIRST, STR_ERROR_MUST_REMOVE_RAILROAD_TRACK, STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST, STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST, STR_ERROR_EXCAVATION_WOULD_DAMAGE]
 
 		/** Area / property is owned by another company */
 		ERR_OWNED_BY_ANOTHER_COMPANY,                 // [STR_ERROR_AREA_IS_OWNED_BY_ANOTHER, STR_ERROR_OWNED_BY]
diff --git a/src/ai/api/ai_error.hpp.sq b/src/ai/api/ai_error.hpp.sq
index 7f27fda69..5101d77f3 100644
--- a/src/ai/api/ai_error.hpp.sq
+++ b/src/ai/api/ai_error.hpp.sq
@@ -79,7 +79,7 @@ void SQAIError_Register(Squirrel *engine)
 	AIError::RegisterErrorMap(STR_ERROR_MUST_DEMOLISH_BUS_STATION_FIRST,            AIError::ERR_AREA_NOT_CLEAR);
 	AIError::RegisterErrorMap(STR_ERROR_BUOY_IN_THE_WAY,                            AIError::ERR_AREA_NOT_CLEAR);
 	AIError::RegisterErrorMap(STR_ERROR_MUST_DEMOLISH_DOCK_FIRST,                   AIError::ERR_AREA_NOT_CLEAR);
-	AIError::RegisterErrorMap(STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY,                AIError::ERR_AREA_NOT_CLEAR);
+	AIError::RegisterErrorMap(STR_ERROR_GENERIC_OBJECT_IN_THE_WAY,                  AIError::ERR_AREA_NOT_CLEAR);
 	AIError::RegisterErrorMap(STR_ERROR_COMPANY_HEADQUARTERS_IN,                    AIError::ERR_AREA_NOT_CLEAR);
 	AIError::RegisterErrorMap(STR_ERROR_OBJECT_IN_THE_WAY,                          AIError::ERR_AREA_NOT_CLEAR);
 	AIError::RegisterErrorMap(STR_ERROR_MUST_REMOVE_ROAD_FIRST,                     AIError::ERR_AREA_NOT_CLEAR);
diff --git a/src/bridge_map.h b/src/bridge_map.h
index 514b405dd..8c364cb67 100644
--- a/src/bridge_map.h
+++ b/src/bridge_map.h
@@ -51,7 +51,7 @@ static inline bool MayHaveBridgeAbove(TileIndex t)
 		IsTileType(t, MP_ROAD) ||
 		IsTileType(t, MP_WATER) ||
 		IsTileType(t, MP_TUNNELBRIDGE) ||
-		IsTileType(t, MP_UNMOVABLE);
+		IsTileType(t, MP_OBJECT);
 }
 
 /**
diff --git a/src/cheat_type.h b/src/cheat_type.h
index ac72d20c7..411634585 100644
--- a/src/cheat_type.h
+++ b/src/cheat_type.h
@@ -26,7 +26,7 @@ struct Cheat {
  * Only add new entries at the end of the struct!
  */
 struct Cheats {
-	Cheat magic_bulldozer;  ///< dynamite industries, unmovables
+	Cheat magic_bulldozer;  ///< dynamite industries, objects
 	Cheat switch_company;   ///< change to another company
 	Cheat money;            ///< get rich or poor
 	Cheat crossing_tunnels; ///< allow tunnels that cross each other
diff --git a/src/command.cpp b/src/command.cpp
index 3821b37cf..31d70be88 100644
--- a/src/command.cpp
+++ b/src/command.cpp
@@ -48,7 +48,7 @@ CommandProc CmdRemoveSingleSignal;
 
 CommandProc CmdTerraformLand;
 
-CommandProc CmdBuildUnmovable;
+CommandProc CmdBuildObject;
 CommandProc CmdSellLandArea;
 
 CommandProc CmdBuildTunnel;
@@ -209,7 +209,7 @@ static const Command _command_proc_table[] = {
 	DEF_CMD(CmdBuildSingleSignal,                       CMD_AUTO), // CMD_BUILD_SIGNALS
 	DEF_CMD(CmdRemoveSingleSignal,                      CMD_AUTO), // CMD_REMOVE_SIGNALS
 	DEF_CMD(CmdTerraformLand,           CMD_ALL_TILES | CMD_AUTO), // CMD_TERRAFORM_LAND
-	DEF_CMD(CmdBuildUnmovable,           CMD_NO_WATER | CMD_AUTO), // CMD_BUILD_UNMOVABLE
+	DEF_CMD(CmdBuildObject,              CMD_NO_WATER | CMD_AUTO), // CMD_BUILD_OBJECT
 	DEF_CMD(CmdBuildTunnel,                             CMD_AUTO), // CMD_BUILD_TUNNEL
 	DEF_CMD(CmdRemoveFromRailStation,                          0), // CMD_REMOVE_FROM_RAIL_STATION
 	DEF_CMD(CmdConvertRail,                                    0), // CMD_CONVERT_RAILD
diff --git a/src/command_type.h b/src/command_type.h
index 57c917b38..be7c14441 100644
--- a/src/command_type.h
+++ b/src/command_type.h
@@ -151,7 +151,7 @@ enum Commands {
 	CMD_BUILD_SIGNALS,                ///< build a signal
 	CMD_REMOVE_SIGNALS,               ///< remove a signal
 	CMD_TERRAFORM_LAND,               ///< terraform a tile
-	CMD_BUILD_UNMOVABLE,              ///< build something unmovable
+	CMD_BUILD_OBJECT,                 ///< build an object
 	CMD_BUILD_TUNNEL,                 ///< build a tunnel
 
 	CMD_REMOVE_FROM_RAIL_STATION,     ///< remove a (rectangle of) tiles from a rail station
diff --git a/src/company_gui.cpp b/src/company_gui.cpp
index 441572709..e8f40dc00 100644
--- a/src/company_gui.cpp
+++ b/src/company_gui.cpp
@@ -30,7 +30,7 @@
 #include "sprite.h"
 #include "company_base.h"
 #include "core/geometry_func.hpp"
-#include "unmovable.h"
+#include "object.h"
 
 #include "table/strings.h"
 
@@ -2004,7 +2004,7 @@ struct CompanyWindow : Window
 
 	virtual void OnPlaceObject(Point pt, TileIndex tile)
 	{
-		if (DoCommandP(tile, UNMOVABLE_HQ, 0, CMD_BUILD_UNMOVABLE | CMD_MSG(STR_ERROR_CAN_T_BUILD_COMPANY_HEADQUARTERS))) {
+		if (DoCommandP(tile, OBJECT_HQ, 0, CMD_BUILD_OBJECT | CMD_MSG(STR_ERROR_CAN_T_BUILD_COMPANY_HEADQUARTERS))) {
 			ResetObjectToPlace();
 			this->RaiseButtons();
 		}
diff --git a/src/economy.cpp b/src/economy.cpp
index 73b288763..ad977a624 100644
--- a/src/economy.cpp
+++ b/src/economy.cpp
@@ -28,7 +28,7 @@
 #include "newgrf_industrytiles.h"
 #include "newgrf_station.h"
 #include "newgrf_airporttiles.h"
-#include "unmovable.h"
+#include "object.h"
 #include "group.h"
 #include "strings_func.h"
 #include "functions.h"
diff --git a/src/economy_type.h b/src/economy_type.h
index 7942bc463..1b79ade5c 100644
--- a/src/economy_type.h
+++ b/src/economy_type.h
@@ -116,8 +116,8 @@ enum Price {
 	PR_RUNNING_SHIP,
 	PR_BUILD_INDUSTRY,
 	PR_CLEAR_INDUSTRY,
-	PR_BUILD_UNMOVABLE,
-	PR_CLEAR_UNMOVABLE,
+	PR_BUILD_OBJECT,
+	PR_CLEAR_OBJECT,
 	PR_BUILD_WAYPOINT_RAIL,
 	PR_CLEAR_WAYPOINT_RAIL,
 	PR_BUILD_WAYPOINT_BUOY,
diff --git a/src/genworld.cpp b/src/genworld.cpp
index 9f5d0842f..36604bf54 100644
--- a/src/genworld.cpp
+++ b/src/genworld.cpp
@@ -39,7 +39,7 @@
 
 void GenerateClearTile();
 void GenerateIndustries();
-void GenerateUnmovables();
+void GenerateObjects();
 void GenerateTrees();
 
 void StartupEconomy();
@@ -118,7 +118,7 @@ static void _GenerateWorld(void *)
 
 		/* Don't generate landscape items when in the scenario editor. */
 		if (_gw.mode == GWM_EMPTY) {
-			SetGeneratingWorldProgress(GWP_UNMOVABLE, 1);
+			SetGeneratingWorldProgress(GWP_OBJECT, 1);
 
 			/* Make sure the tiles at the north border are void tiles if needed. */
 			if (_settings_game.construction.freeform_edges) {
@@ -130,7 +130,7 @@ static void _GenerateWorld(void *)
 			if (_game_mode != GM_MENU) FlatEmptyWorld(_settings_game.game_creation.se_flat_world_height);
 
 			ConvertGroundTilesIntoWaterTiles();
-			IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
+			IncreaseGeneratingWorldProgress(GWP_OBJECT);
 		} else {
 			GenerateLandscape(_gw.mode);
 			GenerateClearTile();
@@ -143,7 +143,7 @@ static void _GenerateWorld(void *)
 					return;
 				}
 				GenerateIndustries();
-				GenerateUnmovables();
+				GenerateObjects();
 				GenerateTrees();
 			}
 		}
diff --git a/src/genworld.h b/src/genworld.h
index e98b92cc1..2b701ad45 100644
--- a/src/genworld.h
+++ b/src/genworld.h
@@ -58,7 +58,7 @@ enum GenWorldProgress {
 	GWP_ROUGH_ROCKY, ///< Make rough and rocky areas
 	GWP_TOWN,        ///< Generate towns
 	GWP_INDUSTRY,    ///< Generate industries
-	GWP_UNMOVABLE,   ///< Generate unmovables (radio tower, light houses)
+	GWP_OBJECT,      ///< Generate objects (radio tower, light houses)
 	GWP_TREE,        ///< Generate trees
 	GWP_GAME_INIT,   ///< Initialize the game
 	GWP_RUNTILELOOP, ///< Runs the tile loop 1280 times to make snow etc
diff --git a/src/genworld_gui.cpp b/src/genworld_gui.cpp
index 53239433b..71de131d7 100644
--- a/src/genworld_gui.cpp
+++ b/src/genworld_gui.cpp
@@ -1146,7 +1146,7 @@ static const StringID _generation_class_table[]  = {
 	STR_GENERATION_CLEARING_TILES,
 	STR_SCENEDIT_TOOLBAR_TOWN_GENERATION,
 	STR_SCENEDIT_TOOLBAR_INDUSTRY_GENERATION,
-	STR_GENERATION_UNMOVABLE_GENERATION,
+	STR_GENERATION_OBJECT_GENERATION,
 	STR_GENERATION_TREE_GENERATION,
 	STR_GENERATION_SETTINGUP_GAME,
 	STR_GENERATION_PREPARING_TILELOOP,
diff --git a/src/industry_cmd.cpp b/src/industry_cmd.cpp
index 8e893d6fe..59f047c76 100644
--- a/src/industry_cmd.cpp
+++ b/src/industry_cmd.cpp
@@ -481,7 +481,7 @@ static CommandCost ClearTile_Industry(TileIndex tile, DoCommandFlag flags)
 				((indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) ||
 				HasBit(GetIndustryTileSpec(GetIndustryGfx(tile))->slopes_refused, 5)))) {
 		SetDParam(1, indspec->name);
-		return_cmd_error(flags & DC_AUTO ? STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY : INVALID_STRING_ID);
+		return_cmd_error(flags & DC_AUTO ? STR_ERROR_GENERIC_OBJECT_IN_THE_WAY : INVALID_STRING_ID);
 	}
 
 	if (flags & DC_EXEC) {
diff --git a/src/landscape.cpp b/src/landscape.cpp
index 265500722..f8dcd5841 100644
--- a/src/landscape.cpp
+++ b/src/landscape.cpp
@@ -43,7 +43,7 @@ extern const TileTypeProcs
 	_tile_type_dummy_procs,
 	_tile_type_industry_procs,
 	_tile_type_tunnelbridge_procs,
-	_tile_type_unmovable_procs;
+	_tile_type_object_procs;
 
 /**
  * Tile callback functions for each type of tile.
@@ -61,7 +61,7 @@ const TileTypeProcs * const _tile_type_procs[16] = {
 	&_tile_type_dummy_procs,        ///< Callback functions for MP_VOID tiles
 	&_tile_type_industry_procs,     ///< Callback functions for MP_INDUSTRY tiles
 	&_tile_type_tunnelbridge_procs, ///< Callback functions for MP_TUNNELBRIDGE tiles
-	&_tile_type_unmovable_procs,    ///< Callback functions for MP_UNMOVABLE tiles
+	&_tile_type_object_procs,       ///< Callback functions for MP_OBJECT tiles
 };
 
 /** landscape slope => sprite */
diff --git a/src/lang/afrikaans.txt b/src/lang/afrikaans.txt
index 5ee83a2d1..1fd298d19 100644
--- a/src/lang/afrikaans.txt
+++ b/src/lang/afrikaans.txt
@@ -2216,10 +2216,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Buis pad brug
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akwamaryn
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Sender
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Vuurtoring
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Maatskappy Hoofkwartier
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Maatskappy-besitte land
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Sender
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Vuurtoring
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Maatskappy Hoofkwartier
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Maatskappy-besitte land
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Oor OpenTTD
@@ -2307,7 +2307,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% k
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Wêreld generasie
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Boom generasie
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Onbeweegbaar generasie
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Onbeweegbaar generasie
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Ru en rotserig area ontwikkeling
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Stel speletjie op
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Hardloop teël-herhaling
@@ -3327,7 +3327,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... alre
 STR_ERROR_OWNED_BY                                              :{WHITE}... besit deur {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... gebied is besit deur 'n ander maatskappy
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Naam moet unike wees
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} in die pad
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} in die pad
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} plaaslike raad weier om dit te toelaat
@@ -3525,7 +3525,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Ander to
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tonnel so op die einde van die kaart eindig
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Kan nie daal vir ander einde van tonnel te uitgrawe nie
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Voorwerp in die pad
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... maatskappy hoofkwartier in die pad
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Die land area kan nie aangekoop word nie...
diff --git a/src/lang/arabic_egypt.txt b/src/lang/arabic_egypt.txt
index 1d7b9e2f8..cea4da09e 100644
--- a/src/lang/arabic_egypt.txt
+++ b/src/lang/arabic_egypt.txt
@@ -2215,10 +2215,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :جسر عربا
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :قناة مائية
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :برج ارسال
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :منارة ضوئية
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :مبنى الشركة الرئيسي
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :ارض مملوكة لشركة
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :برج ارسال
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :منارة ضوئية
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :مبنى الشركة الرئيسي
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :ارض مملوكة لشركة
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}حول النسخة الم�توحة
@@ -2306,7 +2306,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% Ø
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK} مولد الخريطة
 STR_GENERATION_TREE_GENERATION                                  :{BLACK} مولد الشجر
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK} غير قابل لتحريك
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK} غير قابل لتحريك
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}مولد المناطق الخشنة والصخرية
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}تجهيز لعبة
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK} تشغيل المتكررة
@@ -3318,7 +3318,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... تم
 STR_ERROR_OWNED_BY                                              :{WHITE}مملوكة من قبل ... {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... المنطقة مملوكة لشركة منا�سة
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}السم يجب ان يكون �ريدا - غير مستخدم
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} على الطريق
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} على الطريق
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN}بلدية المدينة تر�ض السماح بهذا
@@ -3515,7 +3515,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Ù†Ù�Ù‚ Ø
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}الان�اق تنتهي خارج حدود الخريطة
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}لا يمكن تعديل الأرض �ي نهاية الن�ق
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}عائق �ي الطريق
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}مبنى شركة على الطريق
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}لا يمكن شراء هذة القطعة ...
diff --git a/src/lang/belarusian.txt b/src/lang/belarusian.txt
index 74ccb1408..3e9755691 100644
--- a/src/lang/belarusian.txt
+++ b/src/lang/belarusian.txt
@@ -2573,10 +2573,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :ТрубчаÑ�Ñ
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :�кв�дук
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Перадатчык
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Ма�к
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Штаб-кват�ра кампаніі
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :З�мл� належыць кампаніі
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Перадатчык
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Ма�к
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Штаб-кват�ра кампаніі
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :З�мл� належыць кампаніі
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}�б OpenTTD
@@ -2670,7 +2670,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% Ð
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Ствар�ньне �у�ьвету
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Вы�аджваньне л��оў
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Ген�рацы� нерухома�ьці
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Ген�рацы� нерухома�ьці
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Ра��таноўка д�карацы�ў і кам�нёў
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}�аладка гульні
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Падрыхтоўка да запу�ку...
@@ -3767,7 +3767,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... уж
 STR_ERROR_OWNED_BY                                              :{WHITE}... належыць {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... уча�так належыць іншай кампаніі
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Ім� павінна быць унікальным
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} на шл�ху
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} на шл�ху
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}... адміні�трацы� горада {TOWN} забаран�е вам г�та рабіць
@@ -3978,7 +3978,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Іншы
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Тун�ль заканчваецца па-за межамі мапы
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}�емагчыма падн�ць/апу�ьціць з�млю дл� іншага канца тун�л�
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}�емагчыма пабудаваць аб'ект...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}�б'ект на шл�ху
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... штаб-кват�ра кампаніі на шл�ху
diff --git a/src/lang/brazilian_portuguese.txt b/src/lang/brazilian_portuguese.txt
index cc3bd9224..1506fcafa 100644
--- a/src/lang/brazilian_portuguese.txt
+++ b/src/lang/brazilian_portuguese.txt
@@ -2236,10 +2236,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Ponte rodoviár
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aqueduto
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmissor
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Farol
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Sede de Empresa
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :O terreno é propriedade de uma empresa
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmissor
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Farol
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Sede de Empresa
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :O terreno é propriedade de uma empresa
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Sobre o OpenTTD...
@@ -2333,7 +2333,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Geração de mundo
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Geração de árvores
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Geração imóvel
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Geração imóvel
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Geração de area rochosa e irregular
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Preparando jogo
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Passando tile-loop
@@ -3410,7 +3410,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... já
 STR_ERROR_OWNED_BY                                              :{WHITE}... propriedade de {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... a área é propriedade de outra empresa
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nome deve ser único
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} no caminho
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} no caminho
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}A autoridade local de {TOWN} não autoriza
@@ -3618,7 +3618,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Há outr
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}O túnel não tem onde sair
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Incapaz de escavar o terreno para o outro lado do túnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objeto no caminho
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... sede de empresa no caminho
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Impossível comprar esta área...
diff --git a/src/lang/bulgarian.txt b/src/lang/bulgarian.txt
index 910447a0c..4e67989bb 100644
--- a/src/lang/bulgarian.txt
+++ b/src/lang/bulgarian.txt
@@ -2216,10 +2216,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :ТръбовиÐ
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :�кведукт
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Предавател
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Фар
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :централа
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Зем�, притежавана от компани�та
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Предавател
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Фар
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :централа
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Зем�, притежавана от компани�та
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Отно�но OpenTTD
@@ -2312,7 +2312,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% Ð
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Генераци� на �в�т
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Генераци� на дърва
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Генераци� на �татични
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Генераци� на �татични
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Създаване на твърда и �кална повърно�т
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}�а�тройка на играта
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Изпълн�ване цикъл на плочките
@@ -3342,7 +3342,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... ве
 STR_ERROR_OWNED_BY                                              :{WHITE}... �об�твено�т на {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... зем�та е притежание на друга компани�
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Името тр�бва да е уникално
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} пречи
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} пречи
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} ме�тните вла�ти отказват да позвол�т това
@@ -3540,7 +3540,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Друг
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Тунела би завършил извън картата
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}�е може да бъде изкопан други� край на тунела
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Обект на път�
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... централата е на път�
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Зем�та не може да бъде закупена...
diff --git a/src/lang/catalan.txt b/src/lang/catalan.txt
index 44705c9c9..594c42265 100644
--- a/src/lang/catalan.txt
+++ b/src/lang/catalan.txt
@@ -2222,10 +2222,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Pont de carrete
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aqüeducte
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Repetidor
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Far
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Seu de l'Empresa
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :terreny propietat de l'Empresa
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Repetidor
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Far
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Seu de l'Empresa
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :terreny propietat de l'Empresa
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Quant a OpenTTD
@@ -2313,7 +2313,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Generació del món
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Generació d'arbres
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Generació inamovible
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Generació inamovible
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generació d'una àrea escarpada i rocosa
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Configurant el joc
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Passant el bucle de cel·les
@@ -3377,7 +3377,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... ja c
 STR_ERROR_OWNED_BY                                              :{WHITE}... propietat de {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... l'àrea és propietat d'una altra companyia
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}El nom ha de ser únic
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} en el camí
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} en el camí
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Les autoritats locals de {TOWN} no permeten fer això
@@ -3578,7 +3578,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Un altre
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}El túnel acabarà fora del mapa
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Impossible excavar la terra a l'altre extrem del túnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objecte en el camí
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... seu de la companyia en el camí
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}No pots comprar aquesta àrea de terreny...
diff --git a/src/lang/croatian.txt b/src/lang/croatian.txt
index 68c7fd114..61049352d 100644
--- a/src/lang/croatian.txt
+++ b/src/lang/croatian.txt
@@ -2336,10 +2336,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Cijevni cestovn
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvadukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Odašilja�
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Svjetionik
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Sjedište tvrtke
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Zemlja u posjedu tvrtke
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Odašilja�
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Svjetionik
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Sjedište tvrtke
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Zemlja u posjedu tvrtke
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}O OpenTTD-u
@@ -2433,7 +2433,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% g
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Izrada svijeta
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Generiranje drveća
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Nepomi�no generiranje
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Nepomi�no generiranje
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generiranje grubog i stjenovitog podru�ja
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Pripremam igru
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Izvršavam tile-petlju
@@ -3510,7 +3510,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... već
 STR_ERROR_OWNED_BY                                              :{WHITE}... u vlasništvu {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... podru�je je u vlasništvu druge tvrtke
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Ime mora biti jedinstveno
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} na putu
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} na putu
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} lokalna samouprava odbija to dopustiti
@@ -3721,7 +3721,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Smeta dr
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunel bi završio izvan karte
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Ne moguće iskopoati zemlju na drugoj strani tunela
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Nemoguće izgraditi objekt...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Smeta objekt
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... smeta sjedište tvrtke
diff --git a/src/lang/czech.txt b/src/lang/czech.txt
index 2bdb290fd..b5a51fa1d 100644
--- a/src/lang/czech.txt
+++ b/src/lang/czech.txt
@@ -2294,10 +2294,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Potrubní silni
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvadukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Vysíla�
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Maják
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Ředitelství spole�nosti
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Půda vlastněna spole�ností
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Vysíla�
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Maják
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Ředitelství spole�nosti
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Půda vlastněna spole�ností
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}O OpenTTD
@@ -2391,7 +2391,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}Z {NUM}
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Tvorba krajiny
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Výsadba stromů
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Výstavba nepřesunutelných objektů
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Výstavba nepřesunutelných objektů
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Tvorba �lenitého a kamenitého území
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Nastavování hry
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Spouštění tile-loopu (cyklus na dílcích mapy)
@@ -3474,7 +3474,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... již
 STR_ERROR_OWNED_BY                                              :{WHITE}... vlastněno {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... území vlastní jiná spole�nost
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Jméno musí být jedine�né
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} v cestÄ›
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} v cestÄ›
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Místní správa města {TOWN} odmítla vydat povolení.
@@ -3682,7 +3682,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}V cestÄ›
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunel by kon�il mimo mapu
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Nelze vyrovnat zemi na druhém konci tunelu
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}V cestÄ› je objekt
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... v cestě je ředitelství spole�nosti
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Nelze zakoupit tento pozemek...
diff --git a/src/lang/danish.txt b/src/lang/danish.txt
index d9b925d5b..0fa12c68c 100644
--- a/src/lang/danish.txt
+++ b/src/lang/danish.txt
@@ -2220,10 +2220,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Rørformet bro
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvædukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Sender
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Fyrtårn
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Selskabets hovedkontor
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Land ejet af selskabet
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Sender
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Fyrtårn
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Selskabets hovedkontor
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Land ejet af selskabet
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Om OpenTTD
@@ -2311,7 +2311,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% f
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Verdensgenerering
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Trægenerering
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Ikke-flytbar generering
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Ikke-flytbar generering
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generer råt og stenet område
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Klargør spil
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Kører flise-løkken
@@ -3370,7 +3370,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... alle
 STR_ERROR_OWNED_BY                                              :{WHITE}... ejes af {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... området ejes af et andet selskab
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Navnet skal være unikt
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} i vejen
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} i vejen
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} de lokale myndigheder nægter at tillade dette
@@ -3571,7 +3571,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}En anden
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnellen ville slutte uden for kortet
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Det er umuligt at lave en udgravning til tunnelen i den anden ende
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Der er et objekt i vejen
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... selskabets hovedkontor i vejen
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Kan ikke købe dette landområde...
diff --git a/src/lang/dutch.txt b/src/lang/dutch.txt
index 5236f1822..479df1aed 100644
--- a/src/lang/dutch.txt
+++ b/src/lang/dutch.txt
@@ -2240,10 +2240,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Buisvormige bru
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aquaduct
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Radiomast
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Vuurtoren
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Bedrijfshoofdkwartier
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Terrein in bedrijfseigendom
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Radiomast
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Vuurtoren
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Bedrijfshoofdkwartier
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Terrein in bedrijfseigendom
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Over OpenTTD
@@ -2337,7 +2337,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Wereldontwikkeling
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Bosplaatsing
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Ontwikkeling van onverplaatsbare objecten
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Ontwikkeling van onverplaatsbare objecten
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Ontwikkeling van ruig en rotsachtig gebied
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Spel aan het configureren
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Bezig met vlakken
@@ -3414,7 +3414,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... reed
 STR_ERROR_OWNED_BY                                              :{WHITE}... is eigendom van {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... gebied is van ander bedrijf
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Naam moet uniek zijn
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} in de weg
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} in de weg
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}De gemeenteraad van {TOWN} staat dit niet toe
@@ -3625,7 +3625,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Andere t
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnel eindigt buiten de kaart
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Kan geen land uitgraven voor andere uiteinde tunnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Kan object niet bouwen...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Object in de weg
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... bedrijfshoofdkwartier in de weg
diff --git a/src/lang/english.txt b/src/lang/english.txt
index 35965578a..f5e8c91db 100644
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -1412,7 +1412,7 @@ STR_CHEATS_TOOLTIP                                              :{BLACK}Checkbox
 STR_CHEATS_WARNING                                              :{BLACK}Warning! You are about to betray your fellow competitors. Keep in mind that such a disgrace will be remembered for eternity.
 STR_CHEAT_MONEY                                                 :{LTBLUE}Increase money by {CURRENCY}
 STR_CHEAT_CHANGE_COMPANY                                        :{LTBLUE}Playing as company: {ORANGE}{COMMA}
-STR_CHEAT_EXTRA_DYNAMITE                                        :{LTBLUE}Magic bulldozer (remove industries, unmovables): {ORANGE}{STRING1}
+STR_CHEAT_EXTRA_DYNAMITE                                        :{LTBLUE}Magic bulldozer (remove industries, unmovable objects): {ORANGE}{STRING1}
 STR_CHEAT_CROSSINGTUNNELS                                       :{LTBLUE}Tunnels may cross each other: {ORANGE}{STRING1}
 STR_CHEAT_BUILD_IN_PAUSE                                        :{LTBLUE}Build while in pause mode: {ORANGE}{STRING1}
 STR_CHEAT_NO_JETCRASH                                           :{LTBLUE}Jetplanes will not crash (frequently) on small airports: {ORANGE}{STRING}
@@ -2240,10 +2240,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Tubular road br
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aqueduct
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmitter
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Lighthouse
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Company headquarters
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Company-owned land
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmitter
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Lighthouse
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Company headquarters
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Company-owned land
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}About OpenTTD
@@ -2337,7 +2337,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}World generation
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Tree generation
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Unmovable generation
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Object generation
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Rough and rocky area generation
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Setting up game
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Running tile-loop
@@ -3414,7 +3414,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... alre
 STR_ERROR_OWNED_BY                                              :{WHITE}... owned by {STRING2}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... area is owned by another company
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Name must be unique
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} in the way
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} in the way
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} local authority refuses to allow this
@@ -3625,7 +3625,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Another
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnel would end out of the map
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Unable to excavate land for other end of tunnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Can't build object...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Object in the way
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... company headquarters in the way
diff --git a/src/lang/english_US.txt b/src/lang/english_US.txt
index 03ef8d6ea..fe86bca12 100644
--- a/src/lang/english_US.txt
+++ b/src/lang/english_US.txt
@@ -1396,7 +1396,7 @@ STR_CHEATS_TOOLTIP                                              :{BLACK}Checkbox
 STR_CHEATS_WARNING                                              :{BLACK}Warning! You are about to betray your fellow competitors. Keep in mind that such a disgrace will be remembered for eternity.
 STR_CHEAT_MONEY                                                 :{LTBLUE}Increase money by {CURRENCY}
 STR_CHEAT_CHANGE_COMPANY                                        :{LTBLUE}Playing as company: {ORANGE}{COMMA}
-STR_CHEAT_EXTRA_DYNAMITE                                        :{LTBLUE}Magic bulldozer (remove industries, unmovables): {ORANGE}{STRING}
+STR_CHEAT_EXTRA_DYNAMITE                                        :{LTBLUE}Magic bulldozer (remove industries, unmovable objects): {ORANGE}{STRING}
 STR_CHEAT_CROSSINGTUNNELS                                       :{LTBLUE}Tunnels may cross each other: {ORANGE}{STRING}
 STR_CHEAT_BUILD_IN_PAUSE                                        :{LTBLUE}Build while in pause mode: {ORANGE}{STRING}
 STR_CHEAT_NO_JETCRASH                                           :{LTBLUE}Jetplanes will not crash (frequently) on small airports: {ORANGE}{STRING}
@@ -2211,10 +2211,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Tubular road br
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aqueduct
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmitter
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Lighthouse
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Company Headquarters
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Company-owned land
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmitter
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Lighthouse
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Company Headquarters
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Company-owned land
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD
@@ -2302,7 +2302,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}World generation
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Tree generation
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Unmovable generation
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Object generation
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Rough and rocky area generation
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Setting up game
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Running tile-loop
@@ -3321,7 +3321,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... alre
 STR_ERROR_OWNED_BY                                              :{WHITE}... owned by {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... area is owned by another company
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Name must be unique
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} in the way
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} in the way
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} local authority refuses to allow this
@@ -3518,7 +3518,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Another
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnel would end out of the map
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Unable to excavate land for other end of tunnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Object in the way
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... company headquarters in the way
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Can't purchase this land area...
diff --git a/src/lang/esperanto.txt b/src/lang/esperanto.txt
index 607b7340b..2fc1d5bc7 100644
--- a/src/lang/esperanto.txt
+++ b/src/lang/esperanto.txt
@@ -2178,10 +2178,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Tuba vojponto
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvedukto
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmitilo
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Lumturo
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Kompania Ĉefkonstruaĵo
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Kompanie posedata lando
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmitilo
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Lumturo
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Kompania Ĉefkonstruaĵo
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Kompanie posedata lando
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Pri OpenTTD
@@ -2268,7 +2268,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% k
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Mondgenerado
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Arba generado
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Nemoveblaĵa generado
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Nemoveblaĵa generado
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generado de malglataj kaj rokaj regionoj
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Agordante ludon
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Trakurante kvadratojn
@@ -3245,7 +3245,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... jam
 STR_ERROR_OWNED_BY                                              :{WHITE}... posedata de {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... regiono estas posedata de alia kompanio
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nomo devas esti ununura
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} okupas la lokon
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} okupas la lokon
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}La loka estraro de {TOWN} rifuzas permesi ĉi tion
@@ -3438,7 +3438,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Alia tun
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunelo fini�us ekster la mapo
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Ne eblas liberigi la landon aliflanke de la tunelo
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objekto okupas la lokon
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... kompania ĉefkonstruaĵo okupas la lokon
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Ne povas aĉeti ĉi tiun regionon...
diff --git a/src/lang/estonian.txt b/src/lang/estonian.txt
index c2842780d..8e955e1c8 100644
--- a/src/lang/estonian.txt
+++ b/src/lang/estonian.txt
@@ -2279,10 +2279,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Torujas autotee
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvedukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Retranslaator
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Tuletorn
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Ettevõtte peakorter
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Ettevõtte maa
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Retranslaator
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Tuletorn
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Ettevõtte peakorter
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Ettevõtte maa
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD lisainfo
@@ -2376,7 +2376,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% v
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Maailma genereerimine
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Puude genereerimine
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Liigutamatu tekitamine
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Liigutamatu tekitamine
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Mägise ja kivise maaala tegemine
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Mängu seadistamine
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Klotsisilmuse täitmine
@@ -3447,7 +3447,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... juba
 STR_ERROR_OWNED_BY                                              :{WHITE}... omanik on {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... ala kuulub teisele ettevõttele
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nime ei tohi korduda
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} on ees
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} on ees
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} kohalik omavalitsus keeldub seda lubamast
@@ -3649,7 +3649,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Teine tu
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnel lõpeks väljaspool kaarti
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Ei saa tunneli teise otsa jaoks maad parajaks kaevata
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Mingi objekt on ees
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... ettevõtte peakorter on ees
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Seda maad ei saa osta...
diff --git a/src/lang/finnish.txt b/src/lang/finnish.txt
index a6a14a960..a16f88ffe 100644
--- a/src/lang/finnish.txt
+++ b/src/lang/finnish.txt
@@ -2240,10 +2240,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Putkirakenteine
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvedukti
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Lähetin
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Majakka
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Yhtiön päärakennus
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Yhtiön omistamaa maata
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Lähetin
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Majakka
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Yhtiön päärakennus
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Yhtiön omistamaa maata
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Tietoja OpenTTD:stä
@@ -2337,7 +2337,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% v
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Maailman luominen
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Puiden luominen
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Siirtämättömän luominen
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Siirtämättömän luominen
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Karun ja kivisen alueen luominen
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Valmistellaan peliä
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Ajetaan tile-loop
@@ -3414,7 +3414,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... se o
 STR_ERROR_OWNED_BY                                              :{WHITE}... omistaja: {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... alueen omistaa toinen yhtiö
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nimen täytyy olla uniikki
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} on tiellä.
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} on tiellä.
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN}: paikallisviranomaiset kieltäytyvät.
@@ -3625,7 +3625,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Toinen t
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunneli loppuisi kartan ulkopuolelle
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Maata ei voi kaivaa tunnelin toisessa päässä.
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Kohdetta ei voida rakentaa...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objekti on tiellä.
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... yhtiön päärakennus on tiellä.
diff --git a/src/lang/french.txt b/src/lang/french.txt
index 925a26933..48d40e657 100644
--- a/src/lang/french.txt
+++ b/src/lang/french.txt
@@ -2241,10 +2241,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Pont ferroviair
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aqueduc
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmetteur
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Phare
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Siège de la compagnie
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Terrain appartenant à une compagnie
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmetteur
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Phare
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Siège de la compagnie
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Terrain appartenant à une compagnie
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}A propos de OpenTTD
@@ -2338,7 +2338,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% t
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Création du monde
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Création des arbres
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Création des non-déplacables
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Création des non-déplacables
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Création des zones rugueuses et rocheuses
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Configuration du jeu
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Rafraîchissement du terrain
@@ -3415,7 +3415,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... déj
 STR_ERROR_OWNED_BY                                              :{WHITE}... appartient à {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... appartient à une autre compagnie
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Le nom doit être unique
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} présente
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} présente
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}La municipalité de {TOWN} refuse cette opération
@@ -3626,7 +3626,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Autre tu
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Le tunnel finirait en dehors de la carte
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Impossible de creuser pour faire déboucher le tunnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Impossible de construire l'objet...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objet présent
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... siège de la compagnie présent
diff --git a/src/lang/galician.txt b/src/lang/galician.txt
index 5a892d295..252d42475 100644
--- a/src/lang/galician.txt
+++ b/src/lang/galician.txt
@@ -2180,10 +2180,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Ponte tubular p
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Acueducto
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmisor
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Faro
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Cuartel Xeral de Compañía
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Terreo propiedade dunha compañía
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmisor
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Faro
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Cuartel Xeral de Compañía
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Terreo propiedade dunha compañía
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Acerca de OpenTTD
@@ -2270,7 +2270,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Xeración do mundo
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Xeración de árbores
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Xeración inamovible
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Xeración inamovible
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Xeración de áreas rocosas e quebradas
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Configurando partida
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Executando tile-loop
@@ -3280,7 +3280,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... xa e
 STR_ERROR_OWNED_BY                                              :{WHITE}... é propiedade de {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... a área é propiedade doutra compañía
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}O nome debe ser único
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} no camiño
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} no camiño
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN}: a autoridade local négase a permitilo
@@ -3475,7 +3475,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Hai outr
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}O túnel terminaría fóra do mapa
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Non se pode excava-lo terreo no outro lado do túnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Hai un obxecto no camiño
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... hai un cuartel xeral no camiño
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Non se pode compra-la área de terreo...
diff --git a/src/lang/german.txt b/src/lang/german.txt
index f541ff056..16ea088fd 100644
--- a/src/lang/german.txt
+++ b/src/lang/german.txt
@@ -2240,10 +2240,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Rundstahlbrück
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aquädukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Sendemast
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Leuchtturm
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Firmensitz
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Firmeneigenes Gelände
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Sendemast
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Leuchtturm
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Firmensitz
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Firmeneigenes Gelände
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD
@@ -2337,7 +2337,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% a
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Spielfeld wird erzeugt
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Bäume werden erzeugt
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Unbewegliche Objekte werden erzeugt
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Unbewegliche Objekte werden erzeugt
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Raue, felsige Landschaft wird erzeugt
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Spiel wird vorbereitet
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Spielfeld wird belebt
@@ -3414,7 +3414,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... ist
 STR_ERROR_OWNED_BY                                              :{WHITE}... Eigentum von {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... Gelände gehört einer anderen Firma
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Name bereits vergeben
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} im Weg
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} im Weg
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Die Stadtverwaltung von {TOWN} erteilt keine Genehmigung
@@ -3625,7 +3625,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Ein ande
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnel würde außerhalb des Spielfelds enden
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Land kann am anderen Ende des Tunnels nicht angehoben werden
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Objekt kann nicht gebaut werden...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Gegenstand im Weg
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... Firmensitz ist im Weg
diff --git a/src/lang/greek.txt b/src/lang/greek.txt
index 83786cefb..7739e1d13 100644
--- a/src/lang/greek.txt
+++ b/src/lang/greek.txt
@@ -2330,10 +2330,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :ΚυλινδÏ�Î
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Κανάλι
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Αναμεταδότης
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Φά�ος
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Κεντ�ικά Γ�αφεία Εται�ίας
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Ιδιόκτητη γή από εται�ία
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Αναμεταδότης
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Φά�ος
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Κεντ�ικά Γ�αφεία Εται�ίας
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Ιδιόκτητη γή από εται�ία
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Σχετικά με το OpenTTD
@@ -2427,7 +2427,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% Î
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Δημιου�γία Κόσμου
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Δημιου�γία Δέντ�ων
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Δημιου�γία μη μετακινο�μενων
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Δημιου�γία μη μετακινο�μενων
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Δημιου�γία άγ�ιας και πετ�ώδης πε�ιοχής
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Ρ�θμιση παιχνιδιο�
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Εκτέλεση β�όγχου πλακιδίων
@@ -3510,7 +3510,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... ήδ
 STR_ERROR_OWNED_BY                                              :{WHITE}... ιδιοκτησία του {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... αυτή η πε�ιοχή είναι ιδιοκτησία άλλης εται�ίας
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Το όνομα π�έπει να είναι μοναδικό
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} στη μέση
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} στη μέση
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Οι τοπικές α�χές της πόλης {TOWN} δεν το επιτ�έπουν
@@ -3719,7 +3719,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Άλλο
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Το το�νελ θα καταλήξει εκτός του χά�τη
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Αδ�νατο να γίνει εκσκαφή γης στην άλλη άκ�η του το�νελ
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Δεν μπο�εί να κτιστεί το αντικείμενο...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Αντικείμενο στη μέση
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... κεντ�ικά γ�αφεία εται�ίας στη μέση
diff --git a/src/lang/hebrew.txt b/src/lang/hebrew.txt
index 3c690cc55..564227d88 100644
--- a/src/lang/hebrew.txt
+++ b/src/lang/hebrew.txt
@@ -2234,10 +2234,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :גשר צינו
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :מוביל-מי�
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :�נטנה
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :מיגדלור
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :מטה החברה
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :שטח בבעלות חברה
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :�נטנה
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :מיגדלור
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :מטה החברה
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :שטח בבעלות חברה
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD �ודות
@@ -2331,7 +2331,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% :
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}יצור עול�
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}יצירת עצי�
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}יצירת מבני� בלתי ניידי�
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}יצירת מבני� בלתי ניידי�
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}יצירת �יזורי� סלעיי�
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}קביעת הגדרות המשחק
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}מריץ לול�ה על כל המשבצות
@@ -3387,7 +3387,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... כב
 STR_ERROR_OWNED_BY                                              :{WHITE}... בבעלות {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... השטח בבעלותה של חברה �חרת
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}הש� חייב להיות ייחודי
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}חוס� �ת הדרך {1:STRING}
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}חוס� �ת הדרך {1:STRING}
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}הרשות המקומית של {TOWN} מתנגדת לפעולה זו
@@ -3588,7 +3588,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}מנהר
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}התעלה תסתיי� מחוץ למפה
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}ל� ניתן היה לפנות �ת השטח בקצה השני של המנהרה
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}עצ� חוס� �ת הדרך
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... מטה חברה חוס� �ת הדרך
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}ל� ניתן לקנות שטח זה...
diff --git a/src/lang/hungarian.txt b/src/lang/hungarian.txt
index b6631bba1..262d68170 100644
--- a/src/lang/hungarian.txt
+++ b/src/lang/hungarian.txt
@@ -2304,10 +2304,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Cső közúti h
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvadukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Rádióadó-torony
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Világítótorony
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Vállalat székháza
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Vállalat által birtokolt föld
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Rádióadó-torony
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Világítótorony
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Vállalat székháza
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Vállalat által birtokolt föld
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Az OpenTTD-ről
@@ -2401,7 +2401,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% k
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Térkép létrehozása
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Fák generálása
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Mozgathatatlan létesítmények létrehozása
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Mozgathatatlan létesítmények létrehozása
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Durva és köves területek generálása
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Játék beállítása
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Mezők véglegesítése
@@ -3478,7 +3478,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... már
 STR_ERROR_OWNED_BY                                              :{WHITE}... {STRING} tulajdona
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... a terület más vállalaté
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}A névnek egyedinek kell lennie
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}...{1:STRING} van az útban
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}...{1:STRING} van az útban
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} önkormányzata nem engedélyezi
@@ -3689,7 +3689,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Másik a
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Az alagút vége a pályán kívülre esik
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Nem lehet kiásni a földet az alagút túloldalán
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Nem építhető objektum...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objektum van az útban
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... vállalat székháza van az útban
diff --git a/src/lang/icelandic.txt b/src/lang/icelandic.txt
index 3025df551..8b39990a9 100644
--- a/src/lang/icelandic.txt
+++ b/src/lang/icelandic.txt
@@ -2161,10 +2161,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Rörabrú, vegu
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Vatnsleiðsla
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Mastur
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Viti
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Höfuðstöðvar fyritækis
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Land í eigu fyrirtækis
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Mastur
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Viti
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Höfuðstöðvar fyritækis
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Land í eigu fyrirtækis
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Um OpenTTD
@@ -2251,7 +2251,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% t
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Sköpun heims
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Gróðursetning trjáa
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Staðsetning fastra hluta
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Staðsetning fastra hluta
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Hrjúft og grýtt landslag
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Set upp leik
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Keyri reitalykkju
@@ -3214,7 +3214,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... nú
 STR_ERROR_OWNED_BY                                              :{WHITE}... í eigu {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... svæðið er í eigu annars fyrirtækis
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nafnið verður að vera sérstætt
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} er fyrir
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} er fyrir
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} bæjaryfirvöld leyfa þetta ekki
@@ -3407,7 +3407,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Önnur g
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Göng myndu enda utan korts
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Get ekki breytt landi fyrir hinn enda gangnanna
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Hluturinn er fyrir
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... höfuðstöðvar fyrirtækis eru fyrir
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Þú getur ekki keypt þetta land...
diff --git a/src/lang/indonesian.txt b/src/lang/indonesian.txt
index ef9f8405d..dea5f86ca 100644
--- a/src/lang/indonesian.txt
+++ b/src/lang/indonesian.txt
@@ -2235,10 +2235,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Jembatan berben
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Saluran air dari beton
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Pemancar
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Mercusuar
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Kantor Utama Perusahaan
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Tanah milik Perusahaan
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Pemancar
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Mercusuar
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Kantor Utama Perusahaan
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Tanah milik Perusahaan
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Tentang OpenTTD
@@ -2332,7 +2332,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% s
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Membuat dunia
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Membuat pepohonan
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Membuat objek tak bergerak
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Membuat objek tak bergerak
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Membersihan area
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Mengatur permainan
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Menyiapkan area loop
@@ -3409,7 +3409,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... suda
 STR_ERROR_OWNED_BY                                              :{WHITE}... dimiliki oleh {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... area ini dimiliki oleh perusahaan lain
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nama haruslah unik
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :terhalang {WHITE}{1:STRING}
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :terhalang {WHITE}{1:STRING}
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Pemkot {TOWN} tidak mengijinkan anda melakukan ini
@@ -3618,7 +3618,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Bersingg
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Terowongan boleh berakhir di luar peta
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Tidak dapat menyesuaikan kemiringan tanah di ujung terowongan
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Tidak dapat membuat objek...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}terhalang obyek
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... terhalang kantor pusat perusahaan
diff --git a/src/lang/irish.txt b/src/lang/irish.txt
index 1d88aea2e..5e1f81284 100644
--- a/src/lang/irish.txt
+++ b/src/lang/irish.txt
@@ -2235,10 +2235,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Droichead bóth
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Uiscerian
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Tarchuradóir
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Teach solais
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Ceanncheathrú cuideachta
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Talamh faoi úinéireacht cuideachta
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Tarchuradóir
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Teach solais
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Ceanncheathrú cuideachta
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Talamh faoi úinéireacht cuideachta
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Maidir le OpenTTD
@@ -2332,7 +2332,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Domhan a chruthú
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Crainn a chruthú
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Nithe nach féidir bogadh a chruthú
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Nithe nach féidir bogadh a chruthú
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Limistear garbh agus carraigeach a chruthú
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Cluiche á chumrú
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Lúb tíleanna á rith
@@ -3409,7 +3409,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... tóg
 STR_ERROR_OWNED_BY                                              :{WHITE}... is le {STRING} é
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... is le cuideachta eile an limistéar
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Caithfidh ainm uathúil a bheith ann
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}Tá {1:STRING} sa bhealach
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}Tá {1:STRING} sa bhealach
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Ní cheadaíonn údarás áitiúil {TOWN} é seo
@@ -3620,7 +3620,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Tá toll
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Bheadh deireadh an tollán taobh amuigh den léarscáil
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Ní féidir an talamh a thochailt don taobh eile den tollán
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Ní féidir an oibiacht a thógáil...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Tá rud sa bhealach
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... tá ceanncheathrú na cuideachta sa bhealach
diff --git a/src/lang/italian.txt b/src/lang/italian.txt
index 3c1e266a5..3e83c62c1 100644
--- a/src/lang/italian.txt
+++ b/src/lang/italian.txt
@@ -2242,10 +2242,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Ponte stradale
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Acquedotto
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Trasmettitore
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Faro
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Sede della compagnia
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Terreno posseduto dalla compagnia
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Trasmettitore
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Faro
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Sede della compagnia
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Terreno posseduto dalla compagnia
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Informazioni su OpenTTD
@@ -2339,7 +2339,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Generazione mondo
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Generazione alberi
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Generazione oggetti inamovibili
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Generazione oggetti inamovibili
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generazione aree brulle e rocciose
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Impostazione partita
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Generazione riquadri del terreno
@@ -3416,7 +3416,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... già
 STR_ERROR_OWNED_BY                                              :{WHITE}... posseduto da {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... l'area appartiene a un'altra compagnia
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Il nome deve essere univoco
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} di mezzo
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} di mezzo
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}L'autorità locale di {TOWN} non lo autorizza
@@ -3627,7 +3627,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Altro tu
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Il tunnel terminerebbe fuori dalla mappa
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Impossibile scavare il terreno all'altra estremità del tunnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Impossibile costruire l'oggetto...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Oggetto di mezzo
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... sede della compagnia di mezzo
diff --git a/src/lang/japanese.txt b/src/lang/japanese.txt
index 6fef255e9..f094dcd99 100644
--- a/src/lang/japanese.txt
+++ b/src/lang/japanese.txt
@@ -2207,10 +2207,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :鋼管橋
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :水路橋
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :�信機
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :��
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :交通会社本部ビル
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :会社�所有���る地域
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :�信機
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :��
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :交通会社本部ビル
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :会社�所有���る地域
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD ����
@@ -2298,7 +2298,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}ï¼…
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM}�{NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}地形作�中
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}�林中
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}����信機作�中
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}����信機作�中
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}岩石������地形を作�中
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}ゲームを設定中
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}タイルループを実行中
@@ -3270,7 +3270,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... ã�™ã
 STR_ERROR_OWNED_BY                                              :{WHITE}... 所有者� {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... ��土地�他�会社�所有�れ����
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}���唯一���れ��り��ん
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING}��り��
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING}��り��
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN}�町議会�拒�����。
@@ -3463,7 +3463,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}ä»–ã�®ãƒ
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}トン�ル���当�り�地図�外��り��。
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}����土地を掘削����ん
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}����信機��り��
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... 交通会社本部ビル��り��
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}��地域を購入����ん...
diff --git a/src/lang/korean.txt b/src/lang/korean.txt
index a1d542078..4b6c65355 100644
--- a/src/lang/korean.txt
+++ b/src/lang/korean.txt
@@ -2241,10 +2241,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :ì›�통형 다ë¦
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :수��
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :송신기
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :등대
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :회사 HQ
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :회사 소유지
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :송신기
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :등대
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :회사 HQ
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :회사 소유지
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD� 대해서
@@ -2338,7 +2338,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% ì
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}지형 만드는 중
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}나무 심는 중
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}움��수 없는 �체 만드는 중
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}움��수 없는 �체 만드는 중
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}거친 암�지대 만드는 중
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}게임 설정 중
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}타� 루프 작�중
@@ -3415,7 +3415,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... ì�´ë
 STR_ERROR_OWNED_BY                                              :{WHITE}... {STRING}� 소유입니다.
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... 다른 회사� 소유지입니다!
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}�름� 유�해야 합니다
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}중간� {1:STRING}{G 1 "�" "가"} 있습니다.
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}중간� {1:STRING}{G 1 "�" "가"} 있습니다.
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN}� 대한 낮� 성취�로 �해 지역당국� � 행위를 거절했습니다!
@@ -3626,7 +3626,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}ë�„중ì—
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}터�� 맵 �� 통과합니다
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}지형 문제로 터�� 반대쪽 출구를 만들 수 없습니다
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}오브�트를 건설할 수 없습니다...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}중간� 오브�트가 있습니다
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... 중간� 회사 HQ가 있습니다.
diff --git a/src/lang/latvian.txt b/src/lang/latvian.txt
index 7578ece38..7555a34f4 100644
--- a/src/lang/latvian.txt
+++ b/src/lang/latvian.txt
@@ -2156,10 +2156,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Cauruļveida ti
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvadukts
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Raidīt�js
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :B�ka
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Uzņēmuma birojs
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Uzņēmumam piederoša zeme
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Raidīt�js
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :B�ka
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Uzņēmuma birojs
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Uzņēmumam piederoša zeme
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Par OpenTTD
@@ -2246,7 +2246,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% p
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Pasaules ģenerēšana
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Koka radīšana
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Nep�rvietojama radīšana
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Nep�rvietojama radīšana
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Klinšaina un akmeņaina apvidus ģener�cija
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Uzst�dīt spēli
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Skrejošs nosaukums
@@ -3224,7 +3224,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... jau
 STR_ERROR_OWNED_BY                                              :{WHITE}... pieder {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... zemes gabals pieder citam uzņēmumam
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}V�rdam j�būt unik�lam
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} traucē
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} traucē
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} vietēj� pašvaldība neatļauj š�du rīcību
@@ -3419,7 +3419,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Traucē
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunelis beigsies �rpus kartes
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Nevar izrakt citu tuneli
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Traucējošs objekts
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... traucē uzņēmuma birojs
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Nevar nopirkt Å¡o zemes pleÄ·i...
diff --git a/src/lang/lithuanian.txt b/src/lang/lithuanian.txt
index f57b808cb..c5fe5914f 100644
--- a/src/lang/lithuanian.txt
+++ b/src/lang/lithuanian.txt
@@ -2297,10 +2297,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Vamzdinis tilta
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvedukas
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Radijo siųstuvas
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Å vyturys
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Kompanijos būstinė
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Kompanijos žemė
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Radijo siųstuvas
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Å vyturys
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Kompanijos būstinė
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Kompanijos žemė
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Apie OpenTTD
@@ -2394,7 +2394,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% u
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Pasaulio generacija
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Medžių generacija
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Nejudinama generacija
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Nejudinama generacija
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Daubų ir uolų generacija
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Sukurti zaidima
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Paleidžiamas tile-loop
@@ -3469,7 +3469,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... jau
 STR_ERROR_OWNED_BY                                              :{WHITE}... priklauso {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... ši žemė priklauso kitai įmonei
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Vardas turi būti unikalus
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} kelyje
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} kelyje
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} vietos valdžia neleidžia
@@ -3671,7 +3671,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Trukdo k
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunelis bus žemėlapio gale
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Nepavyko iškasti žemės kitame tunelio gale
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Kelyje objektas
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... trukdo įmonės būstinė
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Neįmanoma užsisakyti šio langelio...
diff --git a/src/lang/luxembourgish.txt b/src/lang/luxembourgish.txt
index e3551dd78..8263e0d0f 100644
--- a/src/lang/luxembourgish.txt
+++ b/src/lang/luxembourgish.txt
@@ -2221,10 +2221,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Rouerstol Brèc
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aquadukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Sender
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Liichttuerm
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Firmen Haaptgebai
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Land am Firmenbesëtz
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Sender
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Liichttuerm
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Firmen Haaptgebai
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Land am Firmenbesëtz
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Iwwert OpenTTD
@@ -2318,7 +2318,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% k
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Welt Generatioun
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Baam Generatioun
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Unbewegbar Generatioun
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Unbewegbar Generatioun
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generatioun vun knubblegen an stengegen Areal
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Spill gëtt opgestallt
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Running tile-loop
@@ -3389,7 +3389,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... scho
 STR_ERROR_OWNED_BY                                              :{WHITE}... am Besëtz vun {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... d'Plaz ass am Besëtz vun enger aanerer Firma
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Numm muss eenzegartëg sinn
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} am Wee
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} am Wee
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} d'Gemeng wëll dat net erlaaben
@@ -3590,7 +3590,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Aaneren
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnel géif ausserhalb der Kaart erauskommen
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Kann d'Land net fir dei aaner Säit vum Tunnel fräi leen
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objet am Wee
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... Firmen Haaptgebai am Wee
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Kann daat Land net kafen...
diff --git a/src/lang/malay.txt b/src/lang/malay.txt
index bb7a46aaf..503bf3e1e 100644
--- a/src/lang/malay.txt
+++ b/src/lang/malay.txt
@@ -2207,10 +2207,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Jambatan tubula
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akueduk
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Menara pemancar
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Rumah api
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Ibu pejabat syarikat
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Tanah dimiliki syarikat
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Menara pemancar
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Rumah api
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Ibu pejabat syarikat
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Tanah dimiliki syarikat
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Tentang OpenTTD
@@ -2304,7 +2304,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% s
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Penjanaan dunia
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Penjanaan pokok
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Penjanaan objek-objek yang tidak boleh digerakkan
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Penjanaan objek-objek yang tidak boleh digerakkan
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Penjanaan kawasan berbatu dan tanah kasar
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Permainan sedang diuruskan
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Lingkaran petak sedang dijalankan
@@ -3131,7 +3131,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... suda
 STR_ERROR_OWNED_BY                                              :{WHITE}... dimiliki oleh {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... kawasan dimiliki oleh syarikat lain
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nama mesti unik
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} menghalang
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} menghalang
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} majlis tempatan tidak membenarkannya
@@ -3330,7 +3330,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Terdapat
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Hujung terowong akan keluar di luar batasan peta
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Tanah tidak dapat dikorek untuk pembinaan hujung terowong
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objek sedang menghalang
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... ibu pejabat syarikat menghalang
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Kawasan ini tidak dapat dibeli...
diff --git a/src/lang/norwegian_bokmal.txt b/src/lang/norwegian_bokmal.txt
index f72f58e65..931a78946 100644
--- a/src/lang/norwegian_bokmal.txt
+++ b/src/lang/norwegian_bokmal.txt
@@ -2224,10 +2224,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Hvelvbro (vei)
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvedukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Radiosender
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Fyrtårn
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Firmahovedkontor
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Feltet eies av et firma
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Radiosender
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Fyrtårn
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Firmahovedkontor
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Feltet eies av et firma
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Om OpenTTD
@@ -2321,7 +2321,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}{NB
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Generer en verden
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Tregenerering
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Ikke-flyttbar generering
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Ikke-flyttbar generering
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generering av ulendt og steinete område
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Klargjør spillet
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Kjører rute-løkke
@@ -3392,7 +3392,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... alle
 STR_ERROR_OWNED_BY                                              :{WHITE}...{NBSP}eies av {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... området eies av et annet firma
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Navn må være unikt
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} er i veien
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} er i veien
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN}s bystyre nekter deg å gjøre dette.
@@ -3599,7 +3599,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}En annen
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnelen ville munne ut utenfor kartkanten
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Kan ikke grave ut land til den andre tunnelinngangen
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objekt er i veien
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... firmahovedkontor er i veien
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Kan ikke kjøpe dette landområdet...
diff --git a/src/lang/norwegian_nynorsk.txt b/src/lang/norwegian_nynorsk.txt
index 4b9066e60..3e3723304 100644
--- a/src/lang/norwegian_nynorsk.txt
+++ b/src/lang/norwegian_nynorsk.txt
@@ -2223,10 +2223,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Hvelvbru (veg)
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvedukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Radiosendar
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Fyrtårn
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Hovudkontor til firma
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Feltet eigast av eit firma
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Radiosendar
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Fyrtårn
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Hovudkontor til firma
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Feltet eigast av eit firma
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Om OpenTTD
@@ -2320,7 +2320,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}{NB
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Generer ei verd
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Tregenerering
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Ikkje-flyttbar generering
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Ikkje-flyttbar generering
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generering av ulendt og steinete område
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Klargjer spelet
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Køyrer rute-løkkje
@@ -3391,7 +3391,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... alle
 STR_ERROR_OWNED_BY                                              :{WHITE}... eigd av {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... feltet er eigd av eit anna firma
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Namnet må vera unikt
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} er i vegen
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} er i vegen
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Bystyret i {TOWN} nektar deg å gjere dette
@@ -3592,7 +3592,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Annan tu
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunnelen vil enda utanfor kartet
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Kan ikkje grave ut land til den andre tunnelutgangen
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objekt er i vegen
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... hovudkontor til firma er i vegen
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Kan ikkje kjøpe dette landområdet...
diff --git a/src/lang/polish.txt b/src/lang/polish.txt
index 5057e7fe8..b6d654723 100644
--- a/src/lang/polish.txt
+++ b/src/lang/polish.txt
@@ -2620,10 +2620,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Cylindryczny mo
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akwedukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Nadajnik
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Latarnia
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Siedziba firmy
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Teren w posiadaniu firmy
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Nadajnik
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Latarnia
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Siedziba firmy
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Teren w posiadaniu firmy
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD
@@ -2717,7 +2717,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}gotowe w
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Tworzenie świata
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Tworzenie drzew
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Tworzenie obiektów
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Tworzenie obiektów
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Tworzenie terenów skalistych i nierówności
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Ustawianie gry
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Uaktywnianie pól
@@ -3800,7 +3800,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... już
 STR_ERROR_OWNED_BY                                              :{WHITE}... w posiadaniu {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... teren jest własnością innej firmy
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nazwa nie może się powtarzać
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} na drodze
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} na drodze
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Lokalne władze {TOWN} nie pozwalają na to
@@ -4011,7 +4011,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Inny tun
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Koniec tunelu poza mapÄ…
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Nie można wydrążyć drugiego końca tunelu
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Nie można zbudować obiektu...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Obiekt na drodze
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... siedziba firmy na drodze
diff --git a/src/lang/portuguese.txt b/src/lang/portuguese.txt
index 44569c6ad..10e95abcb 100644
--- a/src/lang/portuguese.txt
+++ b/src/lang/portuguese.txt
@@ -2240,10 +2240,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Ponte de estrad
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Aqueduto
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmissor
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Farol
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Sede de Empresa
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Terreno propriedade de uma empresa
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmissor
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Farol
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Sede de Empresa
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Terreno propriedade de uma empresa
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Sobre o OpenTTD...
@@ -2337,7 +2337,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}A gerar mundo
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}A gerar árvores
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Geração inamovível
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Geração inamovível
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}A gerar zonas rochosas e montanhosas
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Definindo jogo
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}A preparar o terreno
@@ -3414,7 +3414,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... já
 STR_ERROR_OWNED_BY                                              :{WHITE}... propriedade de {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... a área é propriedade de outra empresa
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Nome deve ser único
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} no caminho
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} no caminho
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}A autoridade local de {TOWN} não autoriza
@@ -3625,7 +3625,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Há outr
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}O túnel terminaria fora do mapa
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Não é possível escavar o terreno para o outro lado do túnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Não é possível construir objecto...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objecto no caminho
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... sede de empresa no caminho
diff --git a/src/lang/romanian.txt b/src/lang/romanian.txt
index 195150f1d..761e44abb 100644
--- a/src/lang/romanian.txt
+++ b/src/lang/romanian.txt
@@ -2240,10 +2240,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Pod rutier tubu
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Apeduct
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmiţător
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Far
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Sediu companie
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Teren în proprietatea unei companii
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmiţător
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Far
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Sediu companie
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Teren în proprietatea unei companii
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Despre OpenTTD
@@ -2337,7 +2337,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% e
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Generare lume
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Generare arbori
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Generare fixă
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Generare fixă
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generare zonă dură şi pietroasă
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Se configurează jocul
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Initializez ciclul dalelor
@@ -3414,7 +3414,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... deja
 STR_ERROR_OWNED_BY                                              :{WHITE}... apartine companiei {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... terenul se află în proprietatea altei companii
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Numele trebuie să fie unic
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} în cale
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} în cale
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Autorităţile locale din {TOWN} refuză să permită această acţiune
@@ -3625,7 +3625,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Intersec
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunelul ar ieşi din hartă
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Terenul de la celălalt capăt al tunelului este imposibil de excavat
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Obiectul nu poate fi construit...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Obiect în cale
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... sediu de companie în cale
diff --git a/src/lang/russian.txt b/src/lang/russian.txt
index d81b82d35..d63d47fac 100644
--- a/src/lang/russian.txt
+++ b/src/lang/russian.txt
@@ -2410,10 +2410,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :ТрубчатÑ
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :�кведук
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Передатчик
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Ма�к
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Штаб-квартира компании
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Земл� в �об�твенно�ти компании
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Передатчик
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Ма�к
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Штаб-квартира компании
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Земл� в �об�твенно�ти компании
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Об OpenTTD
@@ -2507,7 +2507,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% Ð
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Создание мира
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Вы�адка ле�ов
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Генераци� недвижимо�ти
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Генераци� недвижимо�ти
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Ра��тановка декораций и камней
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}�а�тройка
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Подготовка к запу�ку...
@@ -3594,7 +3594,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... уж
 STR_ERROR_OWNED_BY                                              :{WHITE}... принадлежит {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... уча�ток принадлежит другой компании
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Им� должно быть уникальным
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} на пути
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} на пути
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}... админи�траци� города {TOWN} запрещает вам �то делать
@@ -3805,7 +3805,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Друг
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Туннель заканчивает�� за пределами карты
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}�евозможно подн�ть/опу�тить землю дл� другого конца туннел�
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}�евозможно по�троить объект...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Объект на пути
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... штаб-квартира компании на пути
diff --git a/src/lang/serbian.txt b/src/lang/serbian.txt
index acfc0bb23..d260adc7b 100644
--- a/src/lang/serbian.txt
+++ b/src/lang/serbian.txt
@@ -2435,10 +2435,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Cevasti drumski
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvadukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Predajnik
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Svetionik
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Upravna zgrada preduzeća
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Zemljište u posedu preduzeća
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Predajnik
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Svetionik
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Upravna zgrada preduzeća
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Zemljište u posedu preduzeća
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}O OpenTTD-u
@@ -2532,7 +2532,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% z
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Stvaranje sveta
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Postavljanje drveća
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Postavljenje nepomi�nih objekata
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Postavljenje nepomi�nih objekata
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Dodavanje grubih i stenovitih podru�ja
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Podešavanje partije
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Razrađivanje plo�ica
@@ -3625,7 +3625,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... već
 STR_ERROR_OWNED_BY                                              :{WHITE}... je u vlasništvu igra�a {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... zemljište je u vlasništvu drugog preduzeća
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Naziv mora biti jedinstven
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} je na putu
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} je na putu
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} vlast odbija da izda dozvolu
@@ -3836,7 +3836,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Drugi tu
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunel bi završio van okvira terena
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Nije moguće iskopati drugi kraj tunela
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Objekat se ne može izgraditi...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objekat na putu
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... upravna zgrada preduzeća na putu
diff --git a/src/lang/simplified_chinese.txt b/src/lang/simplified_chinese.txt
index 5dd8a4c93..098036f0c 100644
--- a/src/lang/simplified_chinese.txt
+++ b/src/lang/simplified_chinese.txt
@@ -2233,10 +2233,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :函�公路桥
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :水渠
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :转播塔
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :�塔
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :公�总部
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :公�属地
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :转播塔
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :�塔
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :公�总部
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :公�属地
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}关于 OpenTTD
@@ -2330,7 +2330,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}已完æˆ
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}地图生�
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}生�树木
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}生�固定设施
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}生�固定设施
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}生�岩石地貌
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}设置游�
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}地貌细节生�
@@ -3407,7 +3407,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... å·²ç
 STR_ERROR_OWNED_BY                                              :{WHITE}归 {STRING} 所有
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... 此区域由�一公�所有
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}�称��!请�新命�.
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}目标�置有 {1:STRING}
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}目标�置有 {1:STRING}
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} 地方政府�批准此�作……
@@ -3615,7 +3615,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}规划ä½
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}隧�出�将超出地图边界
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}隧�出�的地形无法处�
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}目标处有其他物体
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}目标处有公�总部
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}�能购买这个地��
diff --git a/src/lang/slovak.txt b/src/lang/slovak.txt
index 4a196ff7c..909202bfa 100644
--- a/src/lang/slovak.txt
+++ b/src/lang/slovak.txt
@@ -2302,10 +2302,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Kryty cestny mo
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvadukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Vysielac
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Maják
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Sidlo firmy
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Spolo�nosťou vlastnený pozemok
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Vysielac
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Maják
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Sidlo firmy
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Spolo�nosťou vlastnený pozemok
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD
@@ -2399,7 +2399,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% h
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Vytvorenie krajiny
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Generovanie stromov
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Nepohyblive generovanie
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Nepohyblive generovanie
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generovanie nerovnosti a skal
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Nastavovanie hry
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Spustam tile-loop
@@ -3470,7 +3470,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... uz b
 STR_ERROR_OWNED_BY                                              :{WHITE}... vlastníkom je {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... oblasť vlastní iná spolo�nosť
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Meno musí byt jedinecné
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} v ceste
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} v ceste
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Miestna správa {TOWN} to nedovolí
@@ -3677,7 +3677,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Iny tune
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunel kon�í za okrajom mapy
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Nemožno zarovnať terén na druhej strane tunela
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}V ceste je prekážka
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... sídlo firmy v ceste
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Tento pozemok nie je možné kúpiť...
diff --git a/src/lang/slovenian.txt b/src/lang/slovenian.txt
index 763234b1d..afb4c1cd0 100644
--- a/src/lang/slovenian.txt
+++ b/src/lang/slovenian.txt
@@ -2264,10 +2264,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Cevast cestni m
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvedukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Oddajnik
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Svetilnik
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Sedež podjetja
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Ozemlje v lasti podjetja
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Oddajnik
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Svetilnik
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Sedež podjetja
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Ozemlje v lasti podjetja
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}O OpenTTD
@@ -2361,7 +2361,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% n
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Ustvarjanje sveta
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Ustvarjanje dreves
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Nepremi�no ustvarjanje
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Nepremi�no ustvarjanje
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generiranje grobih in skalnatih tal
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Nastavljanje igre
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Zagnano ponavljanje kvadratkov
@@ -3432,7 +3432,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... že
 STR_ERROR_OWNED_BY                                              :{WHITE}... v lasti {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... zemljiš�e je last drugega podjetja
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Ime mora biti edinstveno
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} na poti
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} na poti
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} mestna oblast tega ne dovoli
@@ -3634,7 +3634,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}ObstojeÄ
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Predor se kon�a izven ozemlja
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Nemogo� izkop zaklju�ka predora na drugi strani
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Ovira na poti
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... sedež podjetja na poti
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Nemogo� nakup tega zemljiš�a...
diff --git a/src/lang/spanish.txt b/src/lang/spanish.txt
index ec76f9009..802279933 100644
--- a/src/lang/spanish.txt
+++ b/src/lang/spanish.txt
@@ -2241,10 +2241,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Puente de carre
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Acueducto
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Transmisor
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Faro
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Sede de la empresa
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Terreno propiedad de una empresa
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Transmisor
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Faro
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Sede de la empresa
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Terreno propiedad de una empresa
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Acerca de OpenTTD
@@ -2338,7 +2338,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Generación de mundo
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Generación de árboles
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Generación de inamovibles
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Generación de inamovibles
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Generación de áreas ásperas o rocosas
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Configurar juego
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Ejecutar tile-loop
@@ -3415,7 +3415,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... ya c
 STR_ERROR_OWNED_BY                                              :{WHITE}... propiedad de {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... otra empresa posee esta área
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}El nombre debe ser único
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} en medio
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} en medio
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Las autoridades locales de {TOWN} rechazan esto
@@ -3626,7 +3626,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Otro tú
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}El túnel acabaría fuera del mapa
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}No se puede excavar en la tierra al otro lado del túnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}No se puede construir objeto...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objeto en medio
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... sede de empresa está en medio
diff --git a/src/lang/swedish.txt b/src/lang/swedish.txt
index aae030a5d..27936c861 100644
--- a/src/lang/swedish.txt
+++ b/src/lang/swedish.txt
@@ -2240,10 +2240,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Rörbro
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Akvedukt
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Radiosändare
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Fyrtorn
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Företagets huvudkontor
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Mark som ägs av företag
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Radiosändare
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Fyrtorn
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Företagets huvudkontor
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Mark som ägs av företag
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD
@@ -2337,7 +2337,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% f
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Generera Värld
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Generera Träd
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Oflyttbar generera
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Oflyttbar generera
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Svår och stenig markgenerering
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Ställer in spel
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Kör tile-loop
@@ -3414,7 +3414,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... reda
 STR_ERROR_OWNED_BY                                              :{WHITE}... ägs av {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... området ägs av ett annat företag
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Namnet måste vara unikt
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} i vägen
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} i vägen
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} de lokala myndigheterna tillåter inte detta
@@ -3625,7 +3625,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}En annan
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tunneln slutar utanför kartans gränser
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Kan inte gräva till marken på andra sidan av tunneln
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Kan inte bygga objekt...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objekt i vägen
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... huvudkontor i vägen
diff --git a/src/lang/traditional_chinese.txt b/src/lang/traditional_chinese.txt
index c955c3be0..3bb9ea05f 100644
--- a/src/lang/traditional_chinese.txt
+++ b/src/lang/traditional_chinese.txt
@@ -2235,10 +2235,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :公路管橋
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :水�橋
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :天線塔
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :燈塔
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :公�總部
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :公�所有土地
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :天線塔
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :燈塔
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :公�總部
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :公�所有土地
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}關於 OpenTTD
@@ -2332,7 +2332,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}完� {
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}產生世界
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}產生樹木
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}無法移動
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}無法移動
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}產生粗地與岩石�域
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}設定�戲
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}執行單格迴圈中
@@ -3406,7 +3406,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... å·²ç
 STR_ERROR_OWNED_BY                                              :{WHITE}... 所有者是 {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... 此�域屬於其它公�所有
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}�稱必須是唯一的
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}被 {1:STRING} 擋�
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}被 {1:STRING} 擋�
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} 地方政府���
@@ -3613,7 +3613,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}被å�¦ä¸
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}隧�出��能超�地圖邊緣
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}無法挖掘隧�出�
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}被�西擋�
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... 被公�總部擋�
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}�能購買這塊土地...
diff --git a/src/lang/turkish.txt b/src/lang/turkish.txt
index 6c83eb150..4f38c23d6 100644
--- a/src/lang/turkish.txt
+++ b/src/lang/turkish.txt
@@ -2225,10 +2225,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Tüplü karayol
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Su kemeri
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Verici
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Fener
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Åžirket binasi
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Satın alınmış alan
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Verici
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Fener
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Åžirket binasi
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Satın alınmış alan
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD Hakkında
@@ -2322,7 +2322,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}%{NUM} t
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Harita üretimi
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Ağaç üretimi
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Tasinmaz üretimi
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Tasinmaz üretimi
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Engebeli ve kayalik alan oluÅŸtur
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Oyun ayarlanıyor
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}tile-loop çalıştırılıyor
@@ -3393,7 +3393,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... zate
 STR_ERROR_OWNED_BY                                              :{WHITE}... sahibi {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... alan baÅŸka bir ÅŸirkete ait
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}İsim daha önce kullanılmamış olmalı
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}yolda {1:STRING} var
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}yolda {1:STRING} var
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} belediyesi buna izin vermiyor
@@ -3600,7 +3600,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Yolda ba
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Tünel haritanın dışında bitiyor
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Tünelin diğer ucunda düzeltme yapılmasi gerekiyor
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Yolda birsey var
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... yolda şirket binası var
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Burası satın alınamaz...
diff --git a/src/lang/ukrainian.txt b/src/lang/ukrainian.txt
index 027652d61..2a9db81e3 100644
--- a/src/lang/ukrainian.txt
+++ b/src/lang/ukrainian.txt
@@ -2365,10 +2365,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :ТрубчаÑ�Ñ
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :�кведук
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Ретран�л�тор
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Ма�к
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Головний офі� компанії
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Ц� діл�нка - вла�ні�ть компанії
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Ретран�л�тор
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Ма�к
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Головний офі� компанії
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Ц� діл�нка - вла�ні�ть компанії
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Про OpenTTD
@@ -2462,7 +2462,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% Ð
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Створенн� �віту
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}�а�адженн� дерев
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Генераці� нерухомо�ті
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Генераці� нерухомо�ті
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Розкидати камінн�
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}�алаштуванн� гри
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Виконуємо цикл
@@ -3539,7 +3539,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... вж
 STR_ERROR_OWNED_BY                                              :{WHITE}... вла�ні�ть {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... діл�нка у вла�но�ті іншої компанії
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}�азва має бути унікальною
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} на шл�ху
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} на шл�ху
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Влада мі�та {TOWN} проти цього
@@ -3750,7 +3750,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Інши
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Тунель закінчить�� поза картою
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}�еможливо виконати будівництво іншого кінц� тунелю
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}�еможливо побудувати об'єкт...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Об'єкт на шл�ху
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... на шл�ху Головний офі�
diff --git a/src/lang/unfinished/basque.txt b/src/lang/unfinished/basque.txt
index b21e1acf4..2b294784b 100644
--- a/src/lang/unfinished/basque.txt
+++ b/src/lang/unfinished/basque.txt
@@ -1537,7 +1537,7 @@ STR_ERROR_THERE_IS_NO_TRAMWAY                                   :{WHITE}... ez d
 
 # Tunnel related errors
 
-# Unmovable related errors
+# Object related errors
 
 # Group related errors
 
diff --git a/src/lang/unfinished/chuvash.txt b/src/lang/unfinished/chuvash.txt
index 0c3c17f59..3bcc4f8a1 100644
--- a/src/lang/unfinished/chuvash.txt
+++ b/src/lang/unfinished/chuvash.txt
@@ -1126,7 +1126,7 @@ STR_FACE_SAVE                                                   :{BLACK}Упра
 
 # Tunnel related errors
 
-# Unmovable related errors
+# Object related errors
 
 # Group related errors
 
diff --git a/src/lang/unfinished/frisian.txt b/src/lang/unfinished/frisian.txt
index 531baa0a3..cadbd543e 100644
--- a/src/lang/unfinished/frisian.txt
+++ b/src/lang/unfinished/frisian.txt
@@ -1418,10 +1418,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_CONCRETE                        :Betonnen brêge
 STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Buis Brêge
 
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Sendmast
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Fjoertoer
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Haadkantoar Bedriuw
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Lân fan bedriuw
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Sendmast
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Fjoertoer
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Haadkantoar Bedriuw
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Lân fan bedriuw
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Oer OpenTTD
@@ -1891,7 +1891,7 @@ STR_ERROR_SITE_UNSUITABLE                                       :{WHITE}... terr
 STR_ERROR_ALREADY_BUILT                                         :{WHITE}... is al bout
 STR_ERROR_OWNED_BY                                              :{WHITE}... is fan {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... gebiet is fan in oar bedriuw
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} yn it paad
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} yn it paad
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} gemiente stiet dit net ta
@@ -2041,7 +2041,7 @@ STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST                            :{WHITE}Tunnel m
 STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Oare tunnel yn't plak
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Kin net grûn foar it oare ein fan'e tunnel ôfgraavje
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Objekt yn't plak
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... haadkantoar bedriuw yn't plak
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Kin dit stikje lân net keapje...
diff --git a/src/lang/unfinished/ido.txt b/src/lang/unfinished/ido.txt
index c4157ec49..8b47e7757 100644
--- a/src/lang/unfinished/ido.txt
+++ b/src/lang/unfinished/ido.txt
@@ -546,7 +546,7 @@ STR_STATION_BUILD_ACCEPTS_CARGO                                 :{BLACK}Aceptas:
 
 
 
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Faro
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Faro
 
 # About OpenTTD window
 STR_ABOUT_VERSION                                               :{BLACK}OpenTTD versiono {REV}
@@ -864,7 +864,7 @@ STR_ERROR_CAN_T_CLEAR_THIS_AREA                                 :{WHITE}Ne povas
 
 # Tunnel related errors
 
-# Unmovable related errors
+# Object related errors
 
 # Group related errors
 
diff --git a/src/lang/unfinished/macedonian.txt b/src/lang/unfinished/macedonian.txt
index 1e8e395a1..b716d7ac3 100644
--- a/src/lang/unfinished/macedonian.txt
+++ b/src/lang/unfinished/macedonian.txt
@@ -1277,7 +1277,7 @@ STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN                            :{WHITE}Мо�т
 
 # Tunnel related errors
 
-# Unmovable related errors
+# Object related errors
 
 # Group related errors
 
diff --git a/src/lang/unfinished/maltese.txt b/src/lang/unfinished/maltese.txt
index 2436e3a6e..6892d2239 100644
--- a/src/lang/unfinished/maltese.txt
+++ b/src/lang/unfinished/maltese.txt
@@ -874,7 +874,7 @@ STR_ERROR_CAN_T_RENAME_DEPOT                                    :{WHITE}Ma tista
 
 # Tunnel related errors
 
-# Unmovable related errors
+# Object related errors
 
 # Group related errors
 
diff --git a/src/lang/unfinished/marathi.txt b/src/lang/unfinished/marathi.txt
index da2ca70af..712681e60 100644
--- a/src/lang/unfinished/marathi.txt
+++ b/src/lang/unfinished/marathi.txt
@@ -771,7 +771,7 @@ STR_STATION_BUILD_AIRPORT_LAYOUT_NAME                           :{BLACK}ठेà¤
 
 # Tunnel related errors
 
-# Unmovable related errors
+# Object related errors
 
 # Group related errors
 
diff --git a/src/lang/unfinished/persian.txt b/src/lang/unfinished/persian.txt
index 79e08ed34..4c60b61fb 100644
--- a/src/lang/unfinished/persian.txt
+++ b/src/lang/unfinished/persian.txt
@@ -1065,9 +1065,9 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_WOODEN                          :پل ماشین
 STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :پل جاده ای لوله ای
 
 
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :�انوس دریایی
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :ساختمان اصلی شرکت
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :زمین خریداری شده
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :�انوس دریایی
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :ساختمان اصلی شرکت
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :زمین خریداری شده
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD در باره ی
@@ -1699,7 +1699,7 @@ STR_ERROR_CAN_T_BUILD_TUNNEL_HERE                               :{WHITE}اینج
 STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL                            :{WHITE}محل برای شروع تونل نا مناسب است
 STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST                            :{WHITE}اول باید تونل خراب شود
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}چیزی در مسیر قرار گر�ته
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}ساختمان اصلی شرکت در مسیر قرار گر�ته است
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}نمی توان این ناحیه را خرید
diff --git a/src/lang/unfinished/tamil.txt b/src/lang/unfinished/tamil.txt
index e08cdc243..630996078 100644
--- a/src/lang/unfinished/tamil.txt
+++ b/src/lang/unfinished/tamil.txt
@@ -944,7 +944,7 @@ STR_ERROR_THERE_IS_NO_TRAMWAY                                   :{WHITE}...டà¯
 
 # Tunnel related errors
 
-# Unmovable related errors
+# Object related errors
 
 # Group related errors
 
diff --git a/src/lang/unfinished/thai.txt b/src/lang/unfinished/thai.txt
index 560502ad0..6be3f8571 100644
--- a/src/lang/unfinished/thai.txt
+++ b/src/lang/unfinished/thai.txt
@@ -2070,7 +2070,7 @@ STR_ERROR_MUST_REMOVE_SIGNALS_FIRST                             :{WHITE}ต้à¸
 
 # Tunnel related errors
 
-# Unmovable related errors
+# Object related errors
 
 # Group related errors
 
diff --git a/src/lang/unfinished/urdu.txt b/src/lang/unfinished/urdu.txt
index 30c74188a..549f7f7f0 100644
--- a/src/lang/unfinished/urdu.txt
+++ b/src/lang/unfinished/urdu.txt
@@ -1186,7 +1186,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}...تعÙ
 STR_ERROR_OWNED_BY                                              :{WHITE}۔۔۔ یھ {STRING} کی ملکیت ھے
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}۔۔۔ رقبھ کسی اور کمپنی کی ملکیت ھے
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE} نام من�رد ھونا چاھیے
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} راستے میں ھے
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} راستے میں ھے
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}{TOWN} مقامی حکومت اس کی اجازت نھیں دیتی
@@ -1244,7 +1244,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}دوسر
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}سورنگ نقشے سے بائر نکل جاے گی
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}سورنگ کے دوسرے حصے کی طر� روکاوٹ �ے
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}کوئی عمارت یا چیذ راستے مین �ے
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}کمپنی کا مرکزی د�تر راستے مین �ے
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}آپ ی� زمین ن�ی خرید سکتے
diff --git a/src/lang/vietnamese.txt b/src/lang/vietnamese.txt
index 48c7e5a6e..686122238 100644
--- a/src/lang/vietnamese.txt
+++ b/src/lang/vietnamese.txt
@@ -2239,10 +2239,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Cầu ống Ä‘Æ
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Cống
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Trạm phát sóng
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Hải đăng
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Trụ sở công ty
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :�ất công ty sở hữu
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Trạm phát sóng
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Hải đăng
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Trụ sở công ty
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :�ất công ty sở hữu
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD
@@ -2336,7 +2336,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% h
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Tạo màn
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Trồng cây
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Sinh đối tượng cứng
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Sinh đối tượng cứng
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Sinh đá và sự gồ gh�
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Thiết lập ván chơi
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}�ang chạy sinh tile
@@ -3413,7 +3413,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... đã
 STR_ERROR_OWNED_BY                                              :{WHITE}... sở hữu bởi {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... vùng này sở hữu bởi công ty khác
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Tên phải không trùng lặp
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} đang có trên đư�ng
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} đang có trên đư�ng
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Chính quy�n {TOWN} từ chối bạn làm việc này
@@ -3622,7 +3622,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}Có hầ
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Một đầu hầm kéo ra ngoài bản đồ
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Không thể đào đất để làm đầu kia của hầm
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_CAN_T_BUILD_OBJECT                                    :{WHITE}Không thể xây đối tượng này...
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Có vật thể trên đư�ng
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... trụ sở công ty nằm trên đư�ng
diff --git a/src/lang/welsh.txt b/src/lang/welsh.txt
index 248d19c07..e48f4a31b 100644
--- a/src/lang/welsh.txt
+++ b/src/lang/welsh.txt
@@ -2136,10 +2136,10 @@ STR_LAI_BRIDGE_DESCRIPTION_ROAD_TUBULAR_STEEL                   :Pont ffordd diw
 
 STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT                             :Traphont
 
-STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER                       :Darlledydd
-STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE                        :Goleudy
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS              :Pencadlys Cwmni
-STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND                :Tir mae cwmni berchen
+STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER                          :Darlledydd
+STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE                           :Goleudy
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS                 :Pencadlys Cwmni
+STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Tir mae cwmni berchen
 
 # About OpenTTD window
 STR_ABOUT_OPENTTD                                               :{WHITE}Gwybodaeth am OpenTTD
@@ -2226,7 +2226,7 @@ STR_GENERATION_PROGRESS                                         :{WHITE}{NUM}% c
 STR_GENERATION_PROGRESS_NUM                                     :{BLACK}{NUM} / {NUM}
 STR_GENERATION_WORLD_GENERATION                                 :{BLACK}Cynhyrchu Byd
 STR_GENERATION_TREE_GENERATION                                  :{BLACK}Cynhyrchu Coed
-STR_GENERATION_UNMOVABLE_GENERATION                             :{BLACK}Cynhyrchu Nodweddion Ansymudol
+STR_GENERATION_OBJECT_GENERATION                                :{BLACK}Cynhyrchu Nodweddion Ansymudol
 STR_GENERATION_CLEARING_TILES                                   :{BLACK}Cynhyrchu ardaloedd creigiog a chnapiog
 STR_GENERATION_SETTINGUP_GAME                                   :{BLACK}Gosod gêm yn ei le
 STR_GENERATION_PREPARING_TILELOOP                               :{BLACK}Rhedeg dolen teiliau
@@ -3187,7 +3187,7 @@ STR_ERROR_ALREADY_BUILT                                         :{WHITE}... eiso
 STR_ERROR_OWNED_BY                                              :{WHITE}... eiddo {STRING}
 STR_ERROR_AREA_IS_OWNED_BY_ANOTHER                              :{WHITE}... mae'r ardal yn eiddo i gwmni arall
 STR_ERROR_NAME_MUST_BE_UNIQUE                                   :{WHITE}Rhaid i'r enw fod yn unigryw
-STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY                           :{WHITE}{1:STRING} yn y ffordd
+STR_ERROR_GENERIC_OBJECT_IN_THE_WAY                             :{WHITE}{1:STRING} yn y ffordd
 
 # Local authority errors
 STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS                 :{WHITE}Nid yw awdurdod lleol {TOWN}yn caniatáu hyn
@@ -3376,7 +3376,7 @@ STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY                             :{WHITE}mae twnn
 STR_ERROR_TUNNEL_THROUGH_MAP_BORDER                             :{WHITE}Byddai'r twnel yn gorffen y tu allan i'r map
 STR_ERROR_UNABLE_TO_EXCAVATE_LAND                               :{WHITE}Does dim modd cloddio'r tir ar ben arall y twnnel
 
-# Unmovable related errors
+# Object related errors
 STR_ERROR_OBJECT_IN_THE_WAY                                     :{WHITE}Gwrthrych yn y ffordd
 STR_ERROR_COMPANY_HEADQUARTERS_IN                               :{WHITE}... pencadlys cwmni yn y ffordd
 STR_ERROR_CAN_T_PURCHASE_THIS_LAND                              :{WHITE}Does dim modd prynu'r darn yma o dir...
diff --git a/src/newgrf_commons.cpp b/src/newgrf_commons.cpp
index 23e891929..e39b31b1b 100644
--- a/src/newgrf_commons.cpp
+++ b/src/newgrf_commons.cpp
@@ -330,7 +330,7 @@ uint32 GetTerrainType(TileIndex tile, bool upper_halftile)
 				case MP_STATION:
 				case MP_HOUSE:
 				case MP_INDUSTRY:
-				case MP_UNMOVABLE:
+				case MP_OBJECT:
 					/* These tiles usually have a levelling foundation. So use max Z */
 					has_snow = (GetTileMaxZ(tile) > GetSnowLine());
 					break;
diff --git a/src/unmovable.h b/src/object.h
index eaffe4dab..bb2afd60c 100644
--- a/src/unmovable.h
+++ b/src/object.h
@@ -7,14 +7,14 @@
  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
  */
 
-/** @file unmovable.h Functions related to unmovable objects. */
+/** @file object.h Functions related to objects. */
 
-#ifndef UNMOVABLE_H
-#define UNMOVABLE_H
+#ifndef OBJECT_H
+#define OBJECT_H
 
 #include "economy_func.h"
 #include "strings_type.h"
-#include "unmovable_type.h"
+#include "object_type.h"
 
 /**
  * Update the CompanyHQ to the state associated with the given score
@@ -24,7 +24,7 @@
 void UpdateCompanyHQ(TileIndex tile, uint score);
 
 /**
- * Actually build the unmovable object.
+ * Actually build the object.
  * @param type  The type of object to build.
  * @param tile  The tile to build the northern tile of the object on.
  * @param owner The owner of the object.
@@ -32,7 +32,7 @@ void UpdateCompanyHQ(TileIndex tile, uint score);
  * @pre All preconditions for building the object at that location
  *      are met, e.g. slope and clearness of tiles are checked.
  */
-void BuildUnmovable(UnmovableType type, TileIndex tile, CompanyID owner = OWNER_NONE, uint index = 0);
+void BuildObject(ObjectType type, TileIndex tile, CompanyID owner = OWNER_NONE, uint index = 0);
 
 
 /** Various object behaviours. */
@@ -55,8 +55,8 @@ enum ObjectFlags {
 DECLARE_ENUM_AS_BIT_SET(ObjectFlags)
 
 
-/** An (unmovable) object that isn't use for transport, industries or houses. */
-struct UnmovableSpec {
+/** An object that isn't use for transport, industries or houses. */
+struct ObjectSpec {
 	StringID name;               ///< The name for this object.
 	uint8 size;                  ///< The size of this objects; low nibble for X, high nibble for Y.
 	uint8 build_cost_multiplier; ///< Build cost multiplier per tile.
@@ -67,28 +67,28 @@ struct UnmovableSpec {
 	 * Get the cost for building a structure of this type.
 	 * @return The cost for building.
 	 */
-	Money GetBuildCost() const { return (_price[PR_BUILD_UNMOVABLE] * this->build_cost_multiplier); }
+	Money GetBuildCost() const { return (_price[PR_BUILD_OBJECT] * this->build_cost_multiplier); }
 
 	/**
 	 * Get the cost for clearing a structure of this type.
 	 * @return The cost for clearing.
 	 */
-	Money GetClearCost() const { return (_price[PR_CLEAR_UNMOVABLE] * this->clear_cost_multiplier); }
+	Money GetClearCost() const { return (_price[PR_CLEAR_OBJECT] * this->clear_cost_multiplier); }
 
 	/**
-	 * Get the specification associated with a specific UnmovableType.
-	 * @param index The unmovable type to fetch.
+	 * Get the specification associated with a specific ObjectType.
+	 * @param index The object type to fetch.
 	 * @return The specification.
 	 */
-	static const UnmovableSpec *Get(UnmovableType index);
+	static const ObjectSpec *Get(ObjectType index);
 
 	/**
 	 * Get the specification associated with a tile.
 	 * @param tile The tile to fetch the data for.
 	 * @return The specification.
 	 */
-	static const UnmovableSpec *GetByTile(TileIndex tile);
+	static const ObjectSpec *GetByTile(TileIndex tile);
 };
 
 
-#endif /* UNMOVABLE_H */
+#endif /* OBJECT_H */
diff --git a/src/unmovable_cmd.cpp b/src/object_cmd.cpp
index 4d0c32eeb..bfc258779 100644
--- a/src/unmovable_cmd.cpp
+++ b/src/object_cmd.cpp
@@ -7,7 +7,7 @@
  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
  */
 
-/** @file unmovable_cmd.cpp Handling of unmovable tiles. */
+/** @file object_cmd.cpp Handling of object tiles. */
 
 #include "stdafx.h"
 #include "landscape.h"
@@ -25,35 +25,35 @@
 #include "company_gui.h"
 #include "cheat_type.h"
 #include "landscape_type.h"
-#include "unmovable.h"
+#include "object.h"
 #include "cargopacket.h"
 #include "sprite.h"
 #include "core/random_func.hpp"
-#include "unmovable_map.h"
+#include "object_map.h"
 
 #include "table/strings.h"
 #include "table/sprites.h"
-#include "table/unmovable_land.h"
+#include "table/object_land.h"
 
-/* static */ const UnmovableSpec *UnmovableSpec::Get(UnmovableType index)
+/* static */ const ObjectSpec *ObjectSpec::Get(ObjectType index)
 {
-	assert(index < UNMOVABLE_MAX);
-	return &_original_unmovable[index];
+	assert(index < OBJECT_MAX);
+	return &_original_objects[index];
 }
 
-/* static */ const UnmovableSpec *UnmovableSpec::GetByTile(TileIndex tile)
+/* static */ const ObjectSpec *ObjectSpec::GetByTile(TileIndex tile)
 {
-	return UnmovableSpec::Get(GetUnmovableType(tile));
+	return ObjectSpec::Get(GetObjectType(tile));
 }
 
-void BuildUnmovable(UnmovableType type, TileIndex tile, CompanyID owner, uint index)
+void BuildObject(ObjectType type, TileIndex tile, CompanyID owner, uint index)
 {
-	const UnmovableSpec *spec = UnmovableSpec::Get(type);
+	const ObjectSpec *spec = ObjectSpec::Get(type);
 
 	TileArea ta(tile, GB(spec->size, 0, 4), GB(spec->size, 4, 4));
 	TILE_AREA_LOOP(t, ta) {
 		TileIndex offset = t - tile;
-		MakeUnmovable(t, type, owner, TileY(offset) << 4 | TileX(offset), index);
+		MakeObject(t, type, owner, TileY(offset) << 4 | TileX(offset), index);
 		MarkTileDirtyByTile(t);
 	}
 }
@@ -61,22 +61,22 @@ void BuildUnmovable(UnmovableType type, TileIndex tile, CompanyID owner, uint in
 /**
  * Increase the animation stage of a whole structure.
  * @param northern The northern tile of the structure.
- * @pre GetUnmovableOffset(northern) == 0
+ * @pre GetObjectOffset(northern) == 0
  */
 void IncreaseAnimationStage(TileIndex northern)
 {
-	assert(GetUnmovableOffset(northern) == 0);
-	const UnmovableSpec *spec = UnmovableSpec::GetByTile(northern);
+	assert(GetObjectOffset(northern) == 0);
+	const ObjectSpec *spec = ObjectSpec::GetByTile(northern);
 
 	TileArea ta(northern, GB(spec->size, 0, 4), GB(spec->size, 4, 4));
 	TILE_AREA_LOOP(t, ta) {
-		SetUnmovableAnimationStage(t, GetUnmovableAnimationStage(t) + 1);
+		SetObjectAnimationStage(t, GetObjectAnimationStage(t) + 1);
 		MarkTileDirtyByTile(t);
 	}
 }
 
 /** We encode the company HQ size in the animation stage. */
-#define GetCompanyHQSize GetUnmovableAnimationStage
+#define GetCompanyHQSize GetObjectAnimationStage
 /** We encode the company HQ size in the animation stage. */
 #define IncreaseCompanyHQSize IncreaseAnimationStage
 
@@ -97,10 +97,10 @@ void UpdateCompanyHQ(TileIndex tile, uint score)
 }
 
 extern CommandCost CheckFlatLand(TileArea tile_area, DoCommandFlag flags);
-static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags);
+static CommandCost ClearTile_Object(TileIndex tile, DoCommandFlag flags);
 
 /**
- * Build an unmovable object
+ * Build an object object
  * @param tile tile where the object will be located
  * @param flags type of operation
  * @param p1 the object type to build
@@ -108,14 +108,14 @@ static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags);
  * @param text unused
  * @return the cost of this operation or an error
  */
-CommandCost CmdBuildUnmovable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdBuildObject(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
 {
 	CommandCost cost(EXPENSES_PROPERTY);
 
-	UnmovableType type = (UnmovableType)GB(p1, 0, 8);
-	if (type >= UNMOVABLE_MAX) return CMD_ERROR;
+	ObjectType type = (ObjectType)GB(p1, 0, 8);
+	if (type >= OBJECT_MAX) return CMD_ERROR;
 
-	const UnmovableSpec *spec = UnmovableSpec::Get(type);
+	const ObjectSpec *spec = ObjectSpec::Get(type);
 	if (spec->flags & OBJECT_FLAG_ONLY_IN_SCENEDIT && (_game_mode != GM_EDITOR || _current_company != OWNER_NONE)) return CMD_ERROR;
 	if (spec->flags & OBJECT_FLAG_ONLY_IN_GAME && (_game_mode != GM_NORMAL || _current_company > MAX_COMPANIES)) return CMD_ERROR;
 
@@ -142,20 +142,20 @@ CommandCost CmdBuildUnmovable(TileIndex tile, DoCommandFlag flags, uint32 p1, ui
 
 	int hq_score = 0;
 	switch (type) {
-		case UNMOVABLE_OWNED_LAND:
-			if (IsTileType(tile, MP_UNMOVABLE) &&
+		case OBJECT_OWNED_LAND:
+			if (IsTileType(tile, MP_OBJECT) &&
 					IsTileOwner(tile, _current_company) &&
 					IsOwnedLand(tile)) {
 				return_cmd_error(STR_ERROR_YOU_ALREADY_OWN_IT);
 			}
 			break;
 
-		case UNMOVABLE_HQ: {
+		case OBJECT_HQ: {
 			Company *c = Company::Get(_current_company);
 			if (c->location_of_HQ != INVALID_TILE) {
 				/* We need to persuade a bit harder to remove the old HQ. */
 				_current_company = OWNER_WATER;
-				cost.AddCost(ClearTile_Unmovable(c->location_of_HQ, flags));
+				cost.AddCost(ClearTile_Object(c->location_of_HQ, flags));
 				_current_company = c->index;
 			}
 
@@ -171,34 +171,34 @@ CommandCost CmdBuildUnmovable(TileIndex tile, DoCommandFlag flags, uint32 p1, ui
 	}
 
 	if (flags & DC_EXEC) {
-		BuildUnmovable(type, tile, _current_company);
+		BuildObject(type, tile, _current_company);
 
 		/* Make sure the HQ starts at the right size. */
-		if (type == UNMOVABLE_HQ) UpdateCompanyHQ(tile, hq_score);
+		if (type == OBJECT_HQ) UpdateCompanyHQ(tile, hq_score);
 	}
 
-	cost.AddCost(UnmovableSpec::Get(type)->GetBuildCost() * size_x * size_y);
+	cost.AddCost(ObjectSpec::Get(type)->GetBuildCost() * size_x * size_y);
 	return cost;
 }
 
 
-static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh);
+static Foundation GetFoundation_Object(TileIndex tile, Slope tileh);
 
-static void DrawTile_Unmovable(TileInfo *ti)
+static void DrawTile_Object(TileInfo *ti)
 {
-	UnmovableType type = GetUnmovableType(ti->tile);
-	const UnmovableSpec *spec = UnmovableSpec::Get(type);
-	if ((spec->flags & OBJECT_FLAG_HAS_NO_FOUNDATION) == 0) DrawFoundation(ti, GetFoundation_Unmovable(ti->tile, ti->tileh));
+	ObjectType type = GetObjectType(ti->tile);
+	const ObjectSpec *spec = ObjectSpec::Get(type);
+	if ((spec->flags & OBJECT_FLAG_HAS_NO_FOUNDATION) == 0) DrawFoundation(ti, GetFoundation_Object(ti->tile, ti->tileh));
 
 	const DrawTileSprites *dts = NULL;
 	Owner to = GetTileOwner(ti->tile);
 	PaletteID palette = to == OWNER_NONE ? PAL_NONE : COMPANY_SPRITE_COLOUR(to);
 
-	if (type == UNMOVABLE_HQ) {
-		uint8 offset = GetUnmovableOffset(ti->tile);
-		dts = &_unmovable_hq[GetCompanyHQSize(ti->tile) << 2 | GB(offset, 4, 1) << 1 | GB(offset, 0, 1)];
+	if (type == OBJECT_HQ) {
+		uint8 offset = GetObjectOffset(ti->tile);
+		dts = &_object_hq[GetCompanyHQSize(ti->tile) << 2 | GB(offset, 4, 1) << 1 | GB(offset, 0, 1)];
 	} else {
-		dts = &_unmovables[type];
+		dts = &_objects[type];
 	}
 
 	if (spec->flags & OBJECT_FLAG_HAS_NO_FOUNDATION) {
@@ -231,7 +231,7 @@ static void DrawTile_Unmovable(TileInfo *ti)
 	if (spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) DrawBridgeMiddle(ti);
 }
 
-static uint GetSlopeZ_Unmovable(TileIndex tile, uint x, uint y)
+static uint GetSlopeZ_Object(TileIndex tile, uint x, uint y)
 {
 	if (IsOwnedLand(tile)) {
 		uint z;
@@ -243,24 +243,24 @@ static uint GetSlopeZ_Unmovable(TileIndex tile, uint x, uint y)
 	}
 }
 
-static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh)
+static Foundation GetFoundation_Object(TileIndex tile, Slope tileh)
 {
 	return IsOwnedLand(tile) ? FOUNDATION_NONE : FlatteningFoundation(tileh);
 }
 
-static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags)
+static CommandCost ClearTile_Object(TileIndex tile, DoCommandFlag flags)
 {
-	UnmovableType type = GetUnmovableType(tile);
-	const UnmovableSpec *spec = UnmovableSpec::Get(type);
+	ObjectType type = GetObjectType(tile);
+	const ObjectSpec *spec = ObjectSpec::Get(type);
 
 	/* Get to the northern most tile. */
-	tile -= GetUnmovableOffset(tile);
+	tile -= GetObjectOffset(tile);
 
 	/* Water can remove everything! */
 	if (_current_company != OWNER_WATER) {
 		if ((spec->flags & OBJECT_FLAG_AUTOREMOVE) == 0 && flags & DC_AUTO) {
 			/* No automatic removal by overbuilding stuff. */
-			return_cmd_error(type == UNMOVABLE_HQ ? STR_ERROR_COMPANY_HEADQUARTERS_IN : STR_ERROR_OBJECT_IN_THE_WAY);
+			return_cmd_error(type == OBJECT_HQ ? STR_ERROR_COMPANY_HEADQUARTERS_IN : STR_ERROR_OBJECT_IN_THE_WAY);
 		} else if (_game_mode == GM_EDITOR) {
 			/* No further limitations for the editor. */
 		} else if (GetTileOwner(tile) == OWNER_NONE) {
@@ -283,7 +283,7 @@ static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags)
 	if (spec->flags & OBJECT_FLAG_CLEAR_INCOME) cost.MultiplyCost(-1); // They get an income!
 
 	switch (type) {
-		case UNMOVABLE_HQ: {
+		case OBJECT_HQ: {
 			Company *c = Company::Get(GetTileOwner(tile));
 			if (flags & DC_EXEC) {
 				c->location_of_HQ = INVALID_TILE; // reset HQ position
@@ -296,7 +296,7 @@ static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags)
 			break;
 		}
 
-		case UNMOVABLE_STATUE:
+		case OBJECT_STATUE:
 			if (flags & DC_EXEC) {
 				TownID town = GetStatueTownID(tile);
 				ClrBit(Town::Get(town)->statues, GetTileOwner(tile));
@@ -315,7 +315,7 @@ static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags)
 	return cost;
 }
 
-static void AddAcceptedCargo_Unmovable(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
+static void AddAcceptedCargo_Object(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
 {
 	if (!IsCompanyHQ(tile)) return;
 
@@ -339,13 +339,13 @@ static void AddAcceptedCargo_Unmovable(TileIndex tile, CargoArray &acceptance, u
 }
 
 
-static void GetTileDesc_Unmovable(TileIndex tile, TileDesc *td)
+static void GetTileDesc_Object(TileIndex tile, TileDesc *td)
 {
-	td->str = UnmovableSpec::GetByTile(tile)->name;
+	td->str = ObjectSpec::GetByTile(tile)->name;
 	td->owner[0] = GetTileOwner(tile);
 }
 
-static void TileLoop_Unmovable(TileIndex tile)
+static void TileLoop_Object(TileIndex tile)
 {
 	if (!IsCompanyHQ(tile)) return;
 
@@ -377,12 +377,12 @@ static void TileLoop_Unmovable(TileIndex tile)
 }
 
 
-static TrackStatus GetTileTrackStatus_Unmovable(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
+static TrackStatus GetTileTrackStatus_Object(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
 {
 	return 0;
 }
 
-static bool ClickTile_Unmovable(TileIndex tile)
+static bool ClickTile_Object(TileIndex tile)
 {
 	if (!IsCompanyHQ(tile)) return false;
 
@@ -405,7 +405,7 @@ static bool IsRadioTowerNearby(TileIndex tile)
 	return false;
 }
 
-void GenerateUnmovables()
+void GenerateObjects()
 {
 	if (_settings_game.game_creation.landscape == LT_TOYLAND) return;
 
@@ -429,7 +429,7 @@ void GenerateUnmovables()
 		lighthouses_to_build = lighthouses_to_build * num_water_tiles / (2 * MapMaxY() + 2 * MapMaxX() - 6);
 	}
 
-	SetGeneratingWorldProgress(GWP_UNMOVABLE, radiotower_to_build + lighthouses_to_build);
+	SetGeneratingWorldProgress(GWP_OBJECT, radiotower_to_build + lighthouses_to_build);
 
 	for (uint i = ScaleByMapSize(1000); i != 0; i--) {
 		TileIndex tile = RandomTile();
@@ -438,8 +438,8 @@ void GenerateUnmovables()
 		if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h >= TILE_HEIGHT * 4 && !IsBridgeAbove(tile)) {
 			if (IsRadioTowerNearby(tile)) continue;
 
-			BuildUnmovable(UNMOVABLE_TRANSMITTER, tile);
-			IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
+			BuildObject(OBJECT_TRANSMITTER, tile);
+			IncreaseGeneratingWorldProgress(GWP_OBJECT);
 			if (--radiotower_to_build == 0) break;
 		}
 	}
@@ -472,8 +472,8 @@ void GenerateUnmovables()
 		for (int j = 0; j < 19; j++) {
 			uint h;
 			if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h <= TILE_HEIGHT * 2 && !IsBridgeAbove(tile)) {
-				BuildUnmovable(UNMOVABLE_LIGHTHOUSE, tile);
-				IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
+				BuildObject(OBJECT_LIGHTHOUSE, tile);
+				IncreaseGeneratingWorldProgress(GWP_OBJECT);
 				lighthouses_to_build--;
 				assert(tile < MapSize());
 				break;
@@ -484,7 +484,7 @@ void GenerateUnmovables()
 	}
 }
 
-static void ChangeTileOwner_Unmovable(TileIndex tile, Owner old_owner, Owner new_owner)
+static void ChangeTileOwner_Object(TileIndex tile, Owner old_owner, Owner new_owner)
 {
 	if (!IsTileOwner(tile, old_owner)) return;
 
@@ -508,10 +508,10 @@ static void ChangeTileOwner_Unmovable(TileIndex tile, Owner old_owner, Owner new
 	}
 }
 
-static CommandCost TerraformTile_Unmovable(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
+static CommandCost TerraformTile_Object(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
 {
-	UnmovableType type = GetUnmovableType(tile);
-	const UnmovableSpec *spec = UnmovableSpec::Get(type);
+	ObjectType type = GetObjectType(tile);
+	const ObjectSpec *spec = ObjectSpec::Get(type);
 
 	if (spec->flags & OBJECT_FLAG_REQUIRE_FLAT) {
 		/* If a flat tile is required by the object, then terraforming is never good. */
@@ -529,19 +529,19 @@ static CommandCost TerraformTile_Unmovable(TileIndex tile, DoCommandFlag flags,
 	return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
 }
 
-extern const TileTypeProcs _tile_type_unmovable_procs = {
-	DrawTile_Unmovable,             // draw_tile_proc
-	GetSlopeZ_Unmovable,            // get_slope_z_proc
-	ClearTile_Unmovable,            // clear_tile_proc
-	AddAcceptedCargo_Unmovable,     // add_accepted_cargo_proc
-	GetTileDesc_Unmovable,          // get_tile_desc_proc
-	GetTileTrackStatus_Unmovable,   // get_tile_track_status_proc
-	ClickTile_Unmovable,            // click_tile_proc
-	NULL,                           // animate_tile_proc
-	TileLoop_Unmovable,             // tile_loop_clear
-	ChangeTileOwner_Unmovable,      // change_tile_owner_clear
-	NULL,                           // add_produced_cargo_proc
-	NULL,                           // vehicle_enter_tile_proc
-	GetFoundation_Unmovable,        // get_foundation_proc
-	TerraformTile_Unmovable,        // terraform_tile_proc
+extern const TileTypeProcs _tile_type_object_procs = {
+	DrawTile_Object,             // draw_tile_proc
+	GetSlopeZ_Object,            // get_slope_z_proc
+	ClearTile_Object,            // clear_tile_proc
+	AddAcceptedCargo_Object,     // add_accepted_cargo_proc
+	GetTileDesc_Object,          // get_tile_desc_proc
+	GetTileTrackStatus_Object,   // get_tile_track_status_proc
+	ClickTile_Object,            // click_tile_proc
+	NULL,                        // animate_tile_proc
+	TileLoop_Object,             // tile_loop_clear
+	ChangeTileOwner_Object,      // change_tile_owner_clear
+	NULL,                        // add_produced_cargo_proc
+	NULL,                        // vehicle_enter_tile_proc
+	GetFoundation_Object,        // get_foundation_proc
+	TerraformTile_Object,        // terraform_tile_proc
 };
diff --git a/src/unmovable_map.h b/src/object_map.h
index ba8fe746f..f22331640 100644
--- a/src/unmovable_map.h
+++ b/src/object_map.h
@@ -7,24 +7,24 @@
  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
  */
 
-/** @file unmovable_map.h Map accessors for unmovable tiles. */
+/** @file object_map.h Map accessors for object tiles. */
 
-#ifndef UNMOVABLE_MAP_H
-#define UNMOVABLE_MAP_H
+#ifndef OBJECT_MAP_H
+#define OBJECT_MAP_H
 
 #include "tile_map.h"
-#include "unmovable_type.h"
+#include "object_type.h"
 
 /**
- * Gets the UnmovableType of the given unmovable tile
+ * Gets the ObjectType of the given object tile
  * @param t the tile to get the type from.
- * @pre IsTileType(t, MP_UNMOVABLE)
+ * @pre IsTileType(t, MP_OBJECT)
  * @return the type.
  */
-static inline UnmovableType GetUnmovableType(TileIndex t)
+static inline ObjectType GetObjectType(TileIndex t)
 {
-	assert(IsTileType(t, MP_UNMOVABLE));
-	return (UnmovableType)_m[t].m5;
+	assert(IsTileType(t, MP_OBJECT));
+	return (ObjectType)_m[t].m5;
 }
 
 /**
@@ -34,19 +34,19 @@ static inline UnmovableType GetUnmovableType(TileIndex t)
  */
 static inline bool IsTransmitterTile(TileIndex t)
 {
-	return IsTileType(t, MP_UNMOVABLE) && GetUnmovableType(t) == UNMOVABLE_TRANSMITTER;
+	return IsTileType(t, MP_OBJECT) && GetObjectType(t) == OBJECT_TRANSMITTER;
 }
 
 /**
- * Is this unmovable tile an 'owned land' tile?
+ * Is this object tile an 'owned land' tile?
  * @param t the tile to inspect.
- * @pre IsTileType(t, MP_UNMOVABLE)
+ * @pre IsTileType(t, MP_OBJECT)
  * @return true if and only if the tile is an 'owned land' tile.
  */
 static inline bool IsOwnedLand(TileIndex t)
 {
-	assert(IsTileType(t, MP_UNMOVABLE));
-	return GetUnmovableType(t) == UNMOVABLE_OWNED_LAND;
+	assert(IsTileType(t, MP_OBJECT));
+	return GetObjectType(t) == OBJECT_OWNED_LAND;
 }
 
 /**
@@ -56,31 +56,31 @@ static inline bool IsOwnedLand(TileIndex t)
  */
 static inline bool IsOwnedLandTile(TileIndex t)
 {
-	return IsTileType(t, MP_UNMOVABLE) && IsOwnedLand(t);
+	return IsTileType(t, MP_OBJECT) && IsOwnedLand(t);
 }
 
 /**
- * Is this unmovable tile a HQ tile?
+ * Is this object tile a HQ tile?
  * @param t the tile to inspect.
- * @pre IsTileType(t, MP_UNMOVABLE)
+ * @pre IsTileType(t, MP_OBJECT)
  * @return true if and only if the tile is a HQ tile.
  */
 static inline bool IsCompanyHQ(TileIndex t)
 {
-	assert(IsTileType(t, MP_UNMOVABLE));
-	return _m[t].m5 == UNMOVABLE_HQ;
+	assert(IsTileType(t, MP_OBJECT));
+	return _m[t].m5 == OBJECT_HQ;
 }
 
 /**
- * Is this unmovable tile a statue?
+ * Is this object tile a statue?
  * @param t the tile to inspect.
- * @pre IsTileType(t, MP_UNMOVABLE)
+ * @pre IsTileType(t, MP_OBJECT)
  * @return true if and only if the tile is a statue.
  */
 static inline bool IsStatue(TileIndex t)
 {
-	assert(IsTileType(t, MP_UNMOVABLE));
-	return GetUnmovableType(t) == UNMOVABLE_STATUE;
+	assert(IsTileType(t, MP_OBJECT));
+	return GetObjectType(t) == OBJECT_STATUE;
 }
 
 /**
@@ -90,7 +90,7 @@ static inline bool IsStatue(TileIndex t)
  */
 static inline bool IsStatueTile(TileIndex t)
 {
-	return IsTileType(t, MP_UNMOVABLE) && IsStatue(t);
+	return IsTileType(t, MP_OBJECT) && IsStatue(t);
 }
 
 /**
@@ -108,12 +108,12 @@ static inline TownID GetStatueTownID(TileIndex t)
 /**
  * Get animation stage/counter of this tile.
  * @param t The tile to query.
- * @pre IsTileType(t, MP_UNMOVABLE)
+ * @pre IsTileType(t, MP_OBJECT)
  * @return The animation 'stage' of the tile.
  */
-static inline byte GetUnmovableAnimationStage(TileIndex t)
+static inline byte GetObjectAnimationStage(TileIndex t)
 {
-	assert(IsTileType(t, MP_UNMOVABLE));
+	assert(IsTileType(t, MP_OBJECT));
 	return GB(_m[t].m6, 2, 4);
 }
 
@@ -121,11 +121,11 @@ static inline byte GetUnmovableAnimationStage(TileIndex t)
  * Set animation stage/counter of this tile.
  * @param t     The tile to query.
  * @param stage The stage of this tile.
- * @pre IsTileType(t, MP_UNMOVABLE)
+ * @pre IsTileType(t, MP_OBJECT)
  */
-static inline void SetUnmovableAnimationStage(TileIndex t, uint8 stage)
+static inline void SetObjectAnimationStage(TileIndex t, uint8 stage)
 {
-	assert(IsTileType(t, MP_UNMOVABLE));
+	assert(IsTileType(t, MP_OBJECT));
 	SB(_m[t].m6, 2, 4, stage);
 }
 
@@ -133,11 +133,11 @@ static inline void SetUnmovableAnimationStage(TileIndex t, uint8 stage)
  * Get offset to the northern most tile.
  * @param t The tile to get the offset from.
  * @return The offset to the northern most tile of this structure.
- * @pre IsTileType(t, MP_UNMOVABLE)
+ * @pre IsTileType(t, MP_OBJECT)
  */
-static inline byte GetUnmovableOffset(TileIndex t)
+static inline byte GetObjectOffset(TileIndex t)
 {
-	assert(IsTileType(t, MP_UNMOVABLE));
+	assert(IsTileType(t, MP_OBJECT));
 	return _m[t].m3;
 }
 
@@ -145,27 +145,27 @@ static inline byte GetUnmovableOffset(TileIndex t)
  * Set offset to the northern most tile.
  * @param t      The tile to set the offset of.
  * @param offset The offset to the northern most tile of this structure.
- * @pre IsTileType(t, MP_UNMOVABLE)
+ * @pre IsTileType(t, MP_OBJECT)
  */
-static inline void SetUnmovableOffset(TileIndex t, uint8 offset)
+static inline void SetObjectOffset(TileIndex t, uint8 offset)
 {
-	assert(IsTileType(t, MP_UNMOVABLE));
+	assert(IsTileType(t, MP_OBJECT));
 	_m[t].m3 = offset;
 }
 
 
 /**
- * Make an Unmovable tile.
+ * Make an Object tile.
  * @note do not use this function directly. Use one of the other Make* functions.
- * @param t      The tile to make unmovable.
- * @param u      The unmovable type of the tile.
+ * @param t      The tile to make and object tile.
+ * @param u      The object type of the tile.
  * @param o      The new owner of the tile.
  * @param offset The offset to the northern tile of this object.
  * @param index  Generic index associated with the object type.
  */
-static inline void MakeUnmovable(TileIndex t, UnmovableType u, Owner o, uint8 offset, uint index)
+static inline void MakeObject(TileIndex t, ObjectType u, Owner o, uint8 offset, uint index)
 {
-	SetTileType(t, MP_UNMOVABLE);
+	SetTileType(t, MP_OBJECT);
 	SetTileOwner(t, o);
 	_m[t].m2 = index;
 	_m[t].m3 = offset;
@@ -175,4 +175,4 @@ static inline void MakeUnmovable(TileIndex t, UnmovableType u, Owner o, uint8 of
 	_me[t].m7 = 0;
 }
 
-#endif /* UNMOVABLE_MAP_H */
+#endif /* OBJECT_MAP_H */
diff --git a/src/unmovable_type.h b/src/object_type.h
index 92f11c31b..54dbec1d4 100644
--- a/src/unmovable_type.h
+++ b/src/object_type.h
@@ -7,21 +7,21 @@
  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
  */
 
-/** @file unmovable_map.h Types related to unmovable tiles. */
+/** @file object_map.h Types related to object tiles. */
 
-#ifndef UNMOVABLE_TYPE_H
-#define UNMOVABLE_TYPE_H
+#ifndef OBJECT_TYPE_H
+#define OBJECT_TYPE_H
 
-/** Types of unmovable structure */
-enum UnmovableType {
-	UNMOVABLE_TRANSMITTER = 0,    ///< The large antenna
-	UNMOVABLE_LIGHTHOUSE  = 1,    ///< The nice lighthouse
-	UNMOVABLE_STATUE      = 2,    ///< Statue in towns
-	UNMOVABLE_OWNED_LAND  = 3,    ///< Owned land 'flag'
-	UNMOVABLE_HQ          = 4,    ///< HeadQuarter of a player
-	UNMOVABLE_MAX,
+/** Types of objects. */
+enum ObjectType {
+	OBJECT_TRANSMITTER = 0,    ///< The large antenna
+	OBJECT_LIGHTHOUSE  = 1,    ///< The nice lighthouse
+	OBJECT_STATUE      = 2,    ///< Statue in towns
+	OBJECT_OWNED_LAND  = 3,    ///< Owned land 'flag'
+	OBJECT_HQ          = 4,    ///< HeadQuarter of a player
+	OBJECT_MAX,
 };
 
-struct UnmovableSpec;
+struct ObjectSpec;
 
-#endif /* UNMOVABLE_MAP_H */
+#endif /* OBJECT_MAP_H */
diff --git a/src/saveload/afterload.cpp b/src/saveload/afterload.cpp
index 2bd49e1b8..ce2ef047b 100644
--- a/src/saveload/afterload.cpp
+++ b/src/saveload/afterload.cpp
@@ -36,7 +36,7 @@
 #include "../elrail_func.h"
 #include "../signs_func.h"
 #include "../aircraft.h"
-#include "../unmovable_map.h"
+#include "../object_map.h"
 #include "../tree_map.h"
 #include "../company_func.h"
 #include "../road_cmd.h"
@@ -1789,22 +1789,22 @@ bool AfterLoadGame()
 		for (TileIndex t = 0; t < map_size; t++) {
 			/* Check for HQ bit being set, instead of using map accessor,
 			 * since we've already changed it code-wise */
-			if (IsTileType(t, MP_UNMOVABLE) && HasBit(_m[t].m5, 7)) {
+			if (IsTileType(t, MP_OBJECT) && HasBit(_m[t].m5, 7)) {
 				/* Move size and part identification of HQ out of the m5 attribute,
 				 * on new locations */
 				_m[t].m3 = GB(_m[t].m5, 0, 5);
-				_m[t].m5 = UNMOVABLE_HQ;
+				_m[t].m5 = OBJECT_HQ;
 			}
 		}
 	}
 	if (CheckSavegameVersion(144)) {
 		for (TileIndex t = 0; t < map_size; t++) {
-			if (!IsTileType(t, MP_UNMOVABLE)) continue;
+			if (!IsTileType(t, MP_OBJECT)) continue;
 
-			/* Reordering/generalisation of the unmovable bits. */
-			UnmovableType type = GetUnmovableType(t);
-			SetUnmovableAnimationStage(t, type == UNMOVABLE_HQ ? GB(_m[t].m3, 2, 3) : 0);
-			SetUnmovableOffset(t, type == UNMOVABLE_HQ ? GB(_m[t].m3, 1, 1) | GB(_m[t].m3, 0, 1) << 4 : 0);
+			/* Reordering/generalisation of the object bits. */
+			ObjectType type = GetObjectType(t);
+			SetObjectAnimationStage(t, type == OBJECT_HQ ? GB(_m[t].m3, 2, 3) : 0);
+			SetObjectOffset(t, type == OBJECT_HQ ? GB(_m[t].m3, 1, 1) | GB(_m[t].m3, 0, 1) << 4 : 0);
 
 			/* Make sure those bits are clear as well! */
 			_m[t].m4 = 0;
diff --git a/src/saveload/oldloader_sl.cpp b/src/saveload/oldloader_sl.cpp
index da1afdd7c..7de25c170 100644
--- a/src/saveload/oldloader_sl.cpp
+++ b/src/saveload/oldloader_sl.cpp
@@ -323,7 +323,7 @@ static bool FixTTOMapArray()
 				}
 				break;
 
-			case MP_UNMOVABLE:
+			case MP_OBJECT:
 				_m[t].m2 = 0;
 				_m[t].m3 = 0;
 				break;
diff --git a/src/smallmap_gui.cpp b/src/smallmap_gui.cpp
index 846fc1073..af2cc1e6a 100644
--- a/src/smallmap_gui.cpp
+++ b/src/smallmap_gui.cpp
@@ -309,7 +309,7 @@ static const AndOr _smallmap_contours_andor[] = {
 	{MKCOLOUR(0x00000000), MKCOLOUR(0xFFFFFFFF)}, // MP_VOID
 	{MKCOLOUR(0xB5B5B5B5), MKCOLOUR(0x00000000)}, // MP_INDUSTRY
 	{MKCOLOUR(0x00000000), MKCOLOUR(0xFFFFFFFF)}, // MP_TUNNELBRIDGE
-	{MKCOLOUR(0x00B5B500), MKCOLOUR(0xFF0000FF)}, // MP_UNMOVABLE
+	{MKCOLOUR(0x00B5B500), MKCOLOUR(0xFF0000FF)}, // MP_OBJECT
 	{MKCOLOUR(0x000A0A00), MKCOLOUR(0xFF0000FF)},
 };
 
@@ -325,7 +325,7 @@ static const AndOr _smallmap_vehicles_andor[] = {
 	{MKCOLOUR(0x00000000), MKCOLOUR(0xFFFFFFFF)}, // MP_VOID
 	{MKCOLOUR(0xB5B5B5B5), MKCOLOUR(0x00000000)}, // MP_INDUSTRY
 	{MKCOLOUR(0x00000000), MKCOLOUR(0xFFFFFFFF)}, // MP_TUNNELBRIDGE
-	{MKCOLOUR(0x00B5B500), MKCOLOUR(0xFF0000FF)}, // MP_UNMOVABLE
+	{MKCOLOUR(0x00B5B500), MKCOLOUR(0xFF0000FF)}, // MP_OBJECT
 	{MKCOLOUR(0x00D7D700), MKCOLOUR(0xFF0000FF)},
 };
 
@@ -341,7 +341,7 @@ static const byte _tiletype_importance[] = {
 	1, // MP_VOID
 	6, // MP_INDUSTRY
 	8, // MP_TUNNELBRIDGE
-	2, // MP_UNMOVABLE
+	2, // MP_OBJECT
 	0,
 };
 
diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp
index 67db95643..902b1ed45 100644
--- a/src/station_cmd.cpp
+++ b/src/station_cmd.cpp
@@ -3495,7 +3495,7 @@ CommandCost ClearTile_Station(TileIndex tile, DoCommandFlag flags)
 			case STATION_DOCK:     return_cmd_error(STR_ERROR_MUST_DEMOLISH_DOCK_FIRST);
 			case STATION_OILRIG:
 				SetDParam(1, STR_INDUSTRY_NAME_OIL_RIG);
-				return_cmd_error(STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY);
+				return_cmd_error(STR_ERROR_GENERIC_OBJECT_IN_THE_WAY);
 		}
 	}
 
diff --git a/src/table/object_land.h b/src/table/object_land.h
new file mode 100644
index 000000000..a445296b2
--- /dev/null
+++ b/src/table/object_land.h
@@ -0,0 +1,133 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file object_land.h Sprites to use and how to display them for object tiles. */
+
+#define TILE_SEQ_LINE(sz, img) { 0, 0, 0, 16, 16, sz, {img, PAL_NONE} },
+#define TILE_SEQ_END() { (int8)0x80, 0, 0, 0, 0, 0, {0, 0} }
+
+static const DrawTileSeqStruct _object_nothing[] = {
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_transmitter_seq[] = {
+	{   7,  7,  0,  2,  2, 70, {SPR_TRANSMITTER, PAL_NONE}},
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_lighthouse_seq[] = {
+	{   4,  4,  0,  7,  7, 61, {SPR_LIGHTHOUSE, PAL_NONE}},
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_statue_seq[] = {
+	{   0,  0,  0, 16, 16, 25, {SPR_STATUE_COMPANY | (1 << PALETTE_MODIFIER_COLOUR), PAL_NONE}},
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_owned_land_seq[] = {
+	{   8,  8,  0,  1,  1,  6, {SPR_BOUGHT_LAND    | (1 << PALETTE_MODIFIER_COLOUR), PAL_NONE}},
+	TILE_SEQ_END()
+};
+
+static const DrawTileSprites _objects[] = {
+	{ { SPR_FLAT_2_THIRD_GRASS_TILE, PAL_NONE }, _object_transmitter_seq },
+	{ { SPR_FLAT_2_THIRD_GRASS_TILE, PAL_NONE }, _object_lighthouse_seq  },
+	{ { SPR_CONCRETE_GROUND,         PAL_NONE }, _object_statue_seq      },
+	{ { SPR_FLAT_BARE_LAND,          PAL_NONE }, _object_owned_land_seq  },
+};
+
+
+static const DrawTileSeqStruct _object_hq_medium_north[] = {
+	TILE_SEQ_LINE(20, SPR_MEDIUMHQ_NORTH_WALL | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_hq_medium_east[] = {
+	TILE_SEQ_LINE(20, SPR_MEDIUMHQ_EAST_WALL  | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_hq_medium_west[] = {
+	TILE_SEQ_LINE(20, SPR_MEDIUMHQ_WEST_WALL  | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_hq_large_north[] = {
+	TILE_SEQ_LINE(50, SPR_LARGEHQ_NORTH_BUILD | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_hq_large_east[] = {
+	TILE_SEQ_LINE(50, SPR_LARGEHQ_EAST_BUILD  | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_hq_large_west[] = {
+	TILE_SEQ_LINE(50, SPR_LARGEHQ_WEST_BUILD  | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_hq_huge_north[] = {
+	TILE_SEQ_LINE(60, SPR_HUGEHQ_NORTH_BUILD  | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_hq_huge_east[] = {
+	TILE_SEQ_LINE(60, SPR_HUGEHQ_EAST_BUILD   | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+static const DrawTileSeqStruct _object_hq_huge_west[] = {
+	TILE_SEQ_LINE(60, SPR_HUGEHQ_WEST_BUILD   | (1 << PALETTE_MODIFIER_COLOUR))
+	TILE_SEQ_END()
+};
+
+#undef TILE_SEQ_LINE
+#undef TILE_SEQ_END
+
+#define TILE_SPRITE_LINE(img, dtss) { {img | (1 << PALETTE_MODIFIER_COLOUR), PAL_NONE}, dtss },
+
+static const DrawTileSprites _object_hq[] = {
+	TILE_SPRITE_LINE(SPR_TINYHQ_NORTH,         _object_nothing)
+	TILE_SPRITE_LINE(SPR_TINYHQ_WEST,          _object_nothing)
+	TILE_SPRITE_LINE(SPR_TINYHQ_EAST,          _object_nothing)
+	TILE_SPRITE_LINE(SPR_TINYHQ_SOUTH,         _object_nothing)
+
+	TILE_SPRITE_LINE(SPR_SMALLHQ_NORTH,        _object_nothing)
+	TILE_SPRITE_LINE(SPR_SMALLHQ_WEST,         _object_nothing)
+	TILE_SPRITE_LINE(SPR_SMALLHQ_EAST,         _object_nothing)
+	TILE_SPRITE_LINE(SPR_SMALLHQ_SOUTH,        _object_nothing)
+
+	TILE_SPRITE_LINE(SPR_MEDIUMHQ_NORTH,       _object_hq_medium_north)
+	TILE_SPRITE_LINE(SPR_MEDIUMHQ_WEST,        _object_hq_medium_west)
+	TILE_SPRITE_LINE(SPR_MEDIUMHQ_EAST,        _object_hq_medium_east)
+	TILE_SPRITE_LINE(SPR_MEDIUMHQ_SOUTH,       _object_nothing)
+
+	TILE_SPRITE_LINE(SPR_LARGEHQ_NORTH_GROUND, _object_hq_large_north)
+	TILE_SPRITE_LINE(SPR_LARGEHQ_WEST_GROUND,  _object_hq_large_west)
+	TILE_SPRITE_LINE(SPR_LARGEHQ_EAST_GROUND,  _object_hq_large_east)
+	TILE_SPRITE_LINE(SPR_LARGEHQ_SOUTH,        _object_nothing)
+
+	TILE_SPRITE_LINE(SPR_HUGEHQ_NORTH_GROUND,  _object_hq_huge_north)
+	TILE_SPRITE_LINE(SPR_HUGEHQ_WEST_GROUND,   _object_hq_huge_west)
+	TILE_SPRITE_LINE(SPR_HUGEHQ_EAST_GROUND,   _object_hq_huge_east)
+	TILE_SPRITE_LINE(SPR_HUGEHQ_SOUTH,         _object_nothing)
+};
+
+#undef TILE_SPRITE_LINE
+
+/** Specification of the original object structures. */
+static const ObjectSpec _original_objects[] = {
+	{ STR_LAI_OBJECT_DESCRIPTION_TRANSMITTER,          0x11,   0,   0, OBJECT_FLAG_CANNOT_REMOVE | OBJECT_FLAG_REQUIRE_FLAT | OBJECT_FLAG_ONLY_IN_SCENEDIT },
+	{ STR_LAI_OBJECT_DESCRIPTION_LIGHTHOUSE,           0x11,   0,   0, OBJECT_FLAG_CANNOT_REMOVE | OBJECT_FLAG_REQUIRE_FLAT | OBJECT_FLAG_ONLY_IN_SCENEDIT },
+	{ STR_TOWN_BUILDING_NAME_STATUE_1,                 0x11,   0,   0, OBJECT_FLAG_CANNOT_REMOVE | OBJECT_FLAG_ONLY_IN_GAME | OBJECT_FLAG_ONLY_IN_SCENEDIT }, // Yes, we disallow building this everywhere. Happens in "special" case!
+	{ STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND,   0x11,  10,   2, OBJECT_FLAG_AUTOREMOVE | OBJECT_FLAG_ONLY_IN_GAME | OBJECT_FLAG_CLEAR_INCOME | OBJECT_FLAG_HAS_NO_FOUNDATION | OBJECT_FLAG_ALLOW_UNDER_BRIDGE },
+	{ STR_LAI_OBJECT_DESCRIPTION_COMPANY_HEADQUARTERS, 0x22,   0,   0, OBJECT_FLAG_CANNOT_REMOVE | OBJECT_FLAG_ONLY_IN_GAME },
+};
diff --git a/src/table/pricebase.h b/src/table/pricebase.h
index e9c60bc39..662a763d4 100644
--- a/src/table/pricebase.h
+++ b/src/table/pricebase.h
@@ -60,8 +60,8 @@ extern const PriceBaseSpec _price_base_specs[] = {
 	{   5600, PCAT_RUNNING,      GSF_SHIPS,        INVALID_PRICE         }, ///< PR_RUNNING_SHIP
 	{1000000, PCAT_CONSTRUCTION, GSF_END,          INVALID_PRICE         }, ///< PR_BUILD_INDUSTRY
 	{   1600, PCAT_CONSTRUCTION, GSF_END,          PR_CLEAR_HOUSE        }, ///< PR_CLEAR_INDUSTRY
-	{     40, PCAT_CONSTRUCTION, GSF_END,          PR_CLEAR_ROUGH        }, ///< PR_BUILD_UNMOVABLE
-	{     40, PCAT_CONSTRUCTION, GSF_END,          PR_CLEAR_ROUGH        }, ///< PR_CLEAR_UNMOVABLE
+	{     40, PCAT_CONSTRUCTION, GSF_END,          PR_CLEAR_ROUGH        }, ///< PR_BUILD_OBJECT
+	{     40, PCAT_CONSTRUCTION, GSF_END,          PR_CLEAR_ROUGH        }, ///< PR_CLEAR_OBJECT
 	{    600, PCAT_CONSTRUCTION, GSF_END,          PR_BUILD_DEPOT_TRAIN  }, ///< PR_BUILD_WAYPOINT_RAIL
 	{     80, PCAT_CONSTRUCTION, GSF_END,          PR_CLEAR_DEPOT_TRAIN  }, ///< PR_CLEAR_WAYPOINT_RAIL
 	{    350, PCAT_CONSTRUCTION, GSF_END,          PR_BUILD_STATION_DOCK }, ///< PR_BUILD_WAYPOINT_BUOY
diff --git a/src/table/sprites.h b/src/table/sprites.h
index 78eb0080c..7cb0ba89e 100644
--- a/src/table/sprites.h
+++ b/src/table/sprites.h
@@ -279,9 +279,9 @@ static const SpriteID SPR_FOUNDATION_BASE = 989;
 /* Shadow cell */
 static const SpriteID SPR_SHADOW_CELL = 1004;
 
-/* Unmovables spritenumbers */
-static const SpriteID SPR_UNMOVABLE_TRANSMITTER   = 2601;
-static const SpriteID SPR_UNMOVABLE_LIGHTHOUSE    = 2602;
+/* Objects spritenumbers */
+static const SpriteID SPR_TRANSMITTER             = 2601;
+static const SpriteID SPR_LIGHTHOUSE              = 2602;
 static const SpriteID SPR_TINYHQ_NORTH            = 2603;
 static const SpriteID SPR_TINYHQ_EAST             = 2604;
 static const SpriteID SPR_TINYHQ_WEST             = 2605;
diff --git a/src/table/station_land.h b/src/table/station_land.h
index 6668ce6b0..1af6fb051 100644
--- a/src/table/station_land.h
+++ b/src/table/station_land.h
@@ -241,7 +241,7 @@ static const DrawTileSeqStruct _station_display_radar_12_fence_sw[] = {
 };
 
 static const DrawTileSeqStruct _station_display_transmitter_fence_ne[] = {
-	TILE_SEQ_LINE( 7,  7,  0,  2,  2, 70, SPR_UNMOVABLE_TRANSMITTER)
+	TILE_SEQ_LINE( 7,  7,  0,  2,  2, 70, SPR_TRANSMITTER)
 	TILE_SEQ_LINE( 0,  0,  0,  1, 16,  6, SPR_AIRPORT_FENCE_Y | (1U << PALETTE_MODIFIER_COLOUR))
 	TILE_SEQ_END()
 };
diff --git a/src/table/unmovable_land.h b/src/table/unmovable_land.h
deleted file mode 100644
index 8c3bd41aa..000000000
--- a/src/table/unmovable_land.h
+++ /dev/null
@@ -1,133 +0,0 @@
-/* $Id$ */
-
-/*
- * This file is part of OpenTTD.
- * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
- * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/** @file unmovable_land.h Sprites to use and how to display them for unmovable tiles. */
-
-#define TILE_SEQ_LINE(sz, img) { 0, 0, 0, 16, 16, sz, {img, PAL_NONE} },
-#define TILE_SEQ_END() { (int8)0x80, 0, 0, 0, 0, 0, {0, 0} }
-
-static const DrawTileSeqStruct _unmovable_nothing[] = {
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_transmitter_seq[] = {
-	{   7,  7,  0,  2,  2, 70, {SPR_UNMOVABLE_TRANSMITTER, PAL_NONE}},
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_lighthouse_seq[] = {
-	{   4,  4,  0,  7,  7, 61, {SPR_UNMOVABLE_LIGHTHOUSE, PAL_NONE}},
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_statue_seq[] = {
-	{   0,  0,  0, 16, 16, 25, {SPR_STATUE_COMPANY | (1 << PALETTE_MODIFIER_COLOUR), PAL_NONE}},
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_owned_land_seq[] = {
-	{   8,  8,  0,  1,  1,  6, {SPR_BOUGHT_LAND    | (1 << PALETTE_MODIFIER_COLOUR), PAL_NONE}},
-	TILE_SEQ_END()
-};
-
-static const DrawTileSprites _unmovables[] = {
-	{ { SPR_FLAT_2_THIRD_GRASS_TILE, PAL_NONE }, _unmovable_transmitter_seq },
-	{ { SPR_FLAT_2_THIRD_GRASS_TILE, PAL_NONE }, _unmovable_lighthouse_seq  },
-	{ { SPR_CONCRETE_GROUND,         PAL_NONE }, _unmovable_statue_seq      },
-	{ { SPR_FLAT_BARE_LAND,          PAL_NONE }, _unmovable_owned_land_seq  },
-};
-
-
-static const DrawTileSeqStruct _unmovable_hq_medium_north[] = {
-	TILE_SEQ_LINE(20, SPR_MEDIUMHQ_NORTH_WALL | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_hq_medium_east[] = {
-	TILE_SEQ_LINE(20, SPR_MEDIUMHQ_EAST_WALL  | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_hq_medium_west[] = {
-	TILE_SEQ_LINE(20, SPR_MEDIUMHQ_WEST_WALL  | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_hq_large_north[] = {
-	TILE_SEQ_LINE(50, SPR_LARGEHQ_NORTH_BUILD | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_hq_large_east[] = {
-	TILE_SEQ_LINE(50, SPR_LARGEHQ_EAST_BUILD  | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_hq_large_west[] = {
-	TILE_SEQ_LINE(50, SPR_LARGEHQ_WEST_BUILD  | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_hq_huge_north[] = {
-	TILE_SEQ_LINE(60, SPR_HUGEHQ_NORTH_BUILD  | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_hq_huge_east[] = {
-	TILE_SEQ_LINE(60, SPR_HUGEHQ_EAST_BUILD   | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-static const DrawTileSeqStruct _unmovable_hq_huge_west[] = {
-	TILE_SEQ_LINE(60, SPR_HUGEHQ_WEST_BUILD   | (1 << PALETTE_MODIFIER_COLOUR))
-	TILE_SEQ_END()
-};
-
-#undef TILE_SEQ_LINE
-#undef TILE_SEQ_END
-
-#define TILE_SPRITE_LINE(img, dtss) { {img | (1 << PALETTE_MODIFIER_COLOUR), PAL_NONE}, dtss },
-
-static const DrawTileSprites _unmovable_hq[] = {
-	TILE_SPRITE_LINE(SPR_TINYHQ_NORTH,         _unmovable_nothing)
-	TILE_SPRITE_LINE(SPR_TINYHQ_WEST,          _unmovable_nothing)
-	TILE_SPRITE_LINE(SPR_TINYHQ_EAST,          _unmovable_nothing)
-	TILE_SPRITE_LINE(SPR_TINYHQ_SOUTH,         _unmovable_nothing)
-
-	TILE_SPRITE_LINE(SPR_SMALLHQ_NORTH,        _unmovable_nothing)
-	TILE_SPRITE_LINE(SPR_SMALLHQ_WEST,         _unmovable_nothing)
-	TILE_SPRITE_LINE(SPR_SMALLHQ_EAST,         _unmovable_nothing)
-	TILE_SPRITE_LINE(SPR_SMALLHQ_SOUTH,        _unmovable_nothing)
-
-	TILE_SPRITE_LINE(SPR_MEDIUMHQ_NORTH,       _unmovable_hq_medium_north)
-	TILE_SPRITE_LINE(SPR_MEDIUMHQ_WEST,        _unmovable_hq_medium_west)
-	TILE_SPRITE_LINE(SPR_MEDIUMHQ_EAST,        _unmovable_hq_medium_east)
-	TILE_SPRITE_LINE(SPR_MEDIUMHQ_SOUTH,       _unmovable_nothing)
-
-	TILE_SPRITE_LINE(SPR_LARGEHQ_NORTH_GROUND, _unmovable_hq_large_north)
-	TILE_SPRITE_LINE(SPR_LARGEHQ_WEST_GROUND,  _unmovable_hq_large_west)
-	TILE_SPRITE_LINE(SPR_LARGEHQ_EAST_GROUND,  _unmovable_hq_large_east)
-	TILE_SPRITE_LINE(SPR_LARGEHQ_SOUTH,        _unmovable_nothing)
-
-	TILE_SPRITE_LINE(SPR_HUGEHQ_NORTH_GROUND,  _unmovable_hq_huge_north)
-	TILE_SPRITE_LINE(SPR_HUGEHQ_WEST_GROUND,   _unmovable_hq_huge_west)
-	TILE_SPRITE_LINE(SPR_HUGEHQ_EAST_GROUND,   _unmovable_hq_huge_east)
-	TILE_SPRITE_LINE(SPR_HUGEHQ_SOUTH,         _unmovable_nothing)
-};
-
-#undef TILE_SPRITE_LINE
-
-/** Specification of the original unmovable structures. */
-static const UnmovableSpec _original_unmovable[] = {
-	{ STR_LAI_UNMOVABLE_DESCRIPTION_TRANSMITTER,          0x11,   0,   0, OBJECT_FLAG_CANNOT_REMOVE | OBJECT_FLAG_REQUIRE_FLAT | OBJECT_FLAG_ONLY_IN_SCENEDIT },
-	{ STR_LAI_UNMOVABLE_DESCRIPTION_LIGHTHOUSE,           0x11,   0,   0, OBJECT_FLAG_CANNOT_REMOVE | OBJECT_FLAG_REQUIRE_FLAT | OBJECT_FLAG_ONLY_IN_SCENEDIT },
-	{ STR_TOWN_BUILDING_NAME_STATUE_1,                    0x11,   0,   0, OBJECT_FLAG_CANNOT_REMOVE | OBJECT_FLAG_ONLY_IN_GAME | OBJECT_FLAG_ONLY_IN_SCENEDIT }, // Yes, we disallow building this everywhere. Happens in "special" case!
-	{ STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_OWNED_LAND,   0x11,  10,   2, OBJECT_FLAG_AUTOREMOVE | OBJECT_FLAG_ONLY_IN_GAME | OBJECT_FLAG_CLEAR_INCOME | OBJECT_FLAG_HAS_NO_FOUNDATION | OBJECT_FLAG_ALLOW_UNDER_BRIDGE },
-	{ STR_LAI_UNMOVABLE_DESCRIPTION_COMPANY_HEADQUARTERS, 0x22,   0,   0, OBJECT_FLAG_CANNOT_REMOVE | OBJECT_FLAG_ONLY_IN_GAME },
-};
diff --git a/src/terraform_gui.cpp b/src/terraform_gui.cpp
index abad08e85..77f409e65 100644
--- a/src/terraform_gui.cpp
+++ b/src/terraform_gui.cpp
@@ -22,7 +22,7 @@
 #include "functions.h"
 #include "sound_func.h"
 #include "base_station_base.h"
-#include "unmovable_map.h"
+#include "object_map.h"
 #include "textbuf_gui.h"
 #include "genworld.h"
 #include "tree_map.h"
@@ -135,7 +135,7 @@ typedef void OnButtonClick(Window *w);
 
 static void PlaceProc_BuyLand(TileIndex tile)
 {
-	DoCommandP(tile, UNMOVABLE_OWNED_LAND, 0, CMD_BUILD_UNMOVABLE | CMD_MSG(STR_ERROR_CAN_T_PURCHASE_THIS_LAND), CcPlaySound1E);
+	DoCommandP(tile, OBJECT_OWNED_LAND, 0, CMD_BUILD_OBJECT | CMD_MSG(STR_ERROR_CAN_T_PURCHASE_THIS_LAND), CcPlaySound1E);
 }
 
 void PlaceProc_DemolishArea(TileIndex tile)
@@ -433,12 +433,12 @@ static void PlaceProc_RockyArea(TileIndex tile)
 
 static void PlaceProc_LightHouse(TileIndex tile)
 {
-	DoCommandP(tile, UNMOVABLE_LIGHTHOUSE, 0, CMD_BUILD_UNMOVABLE | CMD_MSG(STR_ERROR_CAN_T_BUILD_OBJECT), CcTerraform);
+	DoCommandP(tile, OBJECT_LIGHTHOUSE, 0, CMD_BUILD_OBJECT | CMD_MSG(STR_ERROR_CAN_T_BUILD_OBJECT), CcTerraform);
 }
 
 static void PlaceProc_Transmitter(TileIndex tile)
 {
-	DoCommandP(tile, UNMOVABLE_TRANSMITTER, 0, CMD_BUILD_UNMOVABLE | CMD_MSG(STR_ERROR_CAN_T_BUILD_OBJECT), CcTerraform);
+	DoCommandP(tile, OBJECT_TRANSMITTER, 0, CMD_BUILD_OBJECT | CMD_MSG(STR_ERROR_CAN_T_BUILD_OBJECT), CcTerraform);
 }
 
 static void PlaceProc_DesertArea(TileIndex tile)
diff --git a/src/tile_type.h b/src/tile_type.h
index 26b0fa1f0..a939e030a 100644
--- a/src/tile_type.h
+++ b/src/tile_type.h
@@ -42,7 +42,7 @@ enum TileType {
 	MP_VOID,                ///< Invisible tiles at the SW and SE border
 	MP_INDUSTRY,            ///< Part of an industry
 	MP_TUNNELBRIDGE,        ///< Tunnel entry/exit and bridge heads
-	MP_UNMOVABLE,           ///< Contains an object with cannot be removed like transmitters
+	MP_OBJECT,              ///< Contains objects such as transmitters and owned land
 };
 
 /**
diff --git a/src/town_cmd.cpp b/src/town_cmd.cpp
index 6446ff2f8..755544296 100644
--- a/src/town_cmd.cpp
+++ b/src/town_cmd.cpp
@@ -21,7 +21,7 @@
 #include "company_base.h"
 #include "news_func.h"
 #include "gui.h"
-#include "unmovable.h"
+#include "object.h"
 #include "genworld.h"
 #include "newgrf_debug.h"
 #include "newgrf_house.h"
@@ -2505,7 +2505,7 @@ static CommandCost TownActionBuildStatue(Town *t, DoCommandFlag flags)
 	if (CircularTileSearch(&tile, 9, SearchTileForStatue, NULL)) {
 		if (flags & DC_EXEC) {
 			DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
-			BuildUnmovable(UNMOVABLE_STATUE, tile, _current_company, t->index);
+			BuildObject(OBJECT_STATUE, tile, _current_company, t->index);
 			SetBit(t->statues, _current_company); // Once found and built, "inform" the Town.
 			MarkTileDirtyByTile(tile);
 		}
diff --git a/src/transparency.h b/src/transparency.h
index ead80c731..6d79b3830 100644
--- a/src/transparency.h
+++ b/src/transparency.h
@@ -28,7 +28,7 @@ enum TransparencyOption {
 	TO_INDUSTRIES, ///< industries
 	TO_BUILDINGS,  ///< company buildings - depots, stations, HQ, ...
 	TO_BRIDGES,    ///< bridges
-	TO_STRUCTURES, ///< unmovable structures
+	TO_STRUCTURES, ///< other objects such as transmitters and lighthouses
 	TO_CATENARY,   ///< catenary
 	TO_LOADING,    ///< loading indicators
 	TO_END,
diff --git a/src/transparency_gui.cpp b/src/transparency_gui.cpp
index 5d021f965..30b70cae0 100644
--- a/src/transparency_gui.cpp
+++ b/src/transparency_gui.cpp
@@ -32,7 +32,7 @@ enum TransparencyToolbarWidgets {
 	TTW_WIDGET_INDUSTRIES,               ///< industries transparency toggle button.
 	TTW_WIDGET_BUILDINGS,                ///< Company buildings and structures transparency toggle button.
 	TTW_WIDGET_BRIDGES,                  ///< Bridges transparency toggle button.
-	TTW_WIDGET_STRUCTURES,               ///< Unmovable structures transparency toggle button.
+	TTW_WIDGET_STRUCTURES,               ///< Object structure transparency toggle button.
 	TTW_WIDGET_CATENARY,                 ///< Catenary transparency toggle button.
 	TTW_WIDGET_LOADING,                  ///< Loading indicators transparency toggle button.
 	TTW_WIDGET_END,                      ///< End of toggle buttons.
diff --git a/src/tunnelbridge_cmd.cpp b/src/tunnelbridge_cmd.cpp
index 0437e9ea5..0d064793d 100644
--- a/src/tunnelbridge_cmd.cpp
+++ b/src/tunnelbridge_cmd.cpp
@@ -16,7 +16,7 @@
 #include "stdafx.h"
 #include "rail_map.h"
 #include "landscape.h"
-#include "unmovable.h"
+#include "object.h"
 #include "viewport_func.h"
 #include "cmd_helper.h"
 #include "command_func.h"
@@ -395,8 +395,8 @@ CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, u
 					if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
 					break;
 
-				case MP_UNMOVABLE: {
-					const UnmovableSpec *spec = UnmovableSpec::GetByTile(tile);
+				case MP_OBJECT: {
+					const ObjectSpec *spec = ObjectSpec::GetByTile(tile);
 					if ((spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) == 0) goto not_valid_below;
 					break;
 				}