diff --git a/editor/animation_bezier_editor.cpp b/editor/animation_bezier_editor.cpp
index 8d7c6a1f16f9..9b4244728a9f 100644
--- a/editor/animation_bezier_editor.cpp
+++ b/editor/animation_bezier_editor.cpp
@@ -30,6 +30,7 @@
 
 #include "animation_bezier_editor.h"
 
+#include "core/string/translation_server.h"
 #include "editor/editor_node.h"
 #include "editor/editor_settings.h"
 #include "editor/editor_string_names.h"
@@ -439,6 +440,7 @@ void AnimationBezierTrackEdit::_notification(int p_what) {
 			}
 
 			const Color accent = get_theme_color(SNAME("accent_color"), EditorStringName(Editor));
+			const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 
 			// Guides.
 			{
@@ -469,7 +471,7 @@ void AnimationBezierTrackEdit::_notification(int p_what) {
 						draw_line(Point2(limit, i), Point2(right_limit, i), lc, Math::round(EDSCALE));
 						Color c = color;
 						c.a *= 0.5;
-						draw_string(font, Point2(limit + 8, i - 2), TS->format_number(rtos(Math::snapped((iv + 1) * scale, step))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, c);
+						draw_string(font, Point2(limit + 8, i - 2), TS->format_number(rtos(Math::snapped((iv + 1) * scale, step)), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, c);
 					}
 
 					first = false;
@@ -556,8 +558,8 @@ void AnimationBezierTrackEdit::_notification(int p_what) {
 							ep.point_rect.size = bezier_icon->get_size();
 							if (selection.has(IntPair(i, j))) {
 								draw_texture(selected_icon, ep.point_rect.position);
-								draw_string(font, ep.point_rect.position + Vector2(8, -font->get_height(font_size) - 8), TTR("Time:") + " " + TS->format_number(rtos(Math::snapped(offset, 0.0001))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, accent);
-								draw_string(font, ep.point_rect.position + Vector2(8, -8), TTR("Value:") + " " + TS->format_number(rtos(Math::snapped(value, 0.001))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, accent);
+								draw_string(font, ep.point_rect.position + Vector2(8, -font->get_height(font_size) - 8), TTR("Time:") + " " + TS->format_number(rtos(Math::snapped(offset, 0.0001)), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, accent);
+								draw_string(font, ep.point_rect.position + Vector2(8, -8), TTR("Value:") + " " + TS->format_number(rtos(Math::snapped(value, 0.001)), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, accent);
 							} else {
 								Color track_color = Color(1, 1, 1, 1);
 								if (i != selected_track) {
diff --git a/editor/animation_track_editor.cpp b/editor/animation_track_editor.cpp
index c210ad0761b2..9428de8ca178 100644
--- a/editor/animation_track_editor.cpp
+++ b/editor/animation_track_editor.cpp
@@ -33,6 +33,7 @@
 #include "animation_track_editor_plugins.h"
 #include "core/error/error_macros.h"
 #include "core/input/input.h"
+#include "core/string/translation_server.h"
 #include "editor/animation_bezier_editor.h"
 #include "editor/editor_node.h"
 #include "editor/editor_settings.h"
@@ -2787,7 +2788,8 @@ String AnimationTrackEdit::get_tooltip(const Point2 &p_pos) const {
 		}
 
 		if (key_idx != -1) {
-			String text = TTR("Time (s):") + " " + TS->format_number(rtos(Math::snapped(animation->track_get_key_time(track, key_idx), SECOND_DECIMAL))) + "\n";
+			const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+			String text = TTR("Time (s):") + " " + TS->format_number(rtos(Math::snapped(animation->track_get_key_time(track, key_idx), SECOND_DECIMAL)), lang) + "\n";
 			switch (animation->track_get_type(track)) {
 				case Animation::TYPE_POSITION_3D: {
 					Vector3 t = animation->track_get_key_value(track, key_idx);
@@ -8562,7 +8564,8 @@ String AnimationMarkerEdit::get_tooltip(const Point2 &p_pos) const {
 
 		if (key_idx != -1) {
 			String name = names[key_idx];
-			String text = TTR("Time (s):") + " " + TS->format_number(rtos(Math::snapped(animation->get_marker_time(name), 0.0001))) + "\n";
+			const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+			String text = TTR("Time (s):") + " " + TS->format_number(rtos(Math::snapped(animation->get_marker_time(name), 0.0001)), lang) + "\n";
 			text += TTR("Marker:") + " " + name + "\n";
 			return text;
 		}
diff --git a/editor/debugger/editor_performance_profiler.cpp b/editor/debugger/editor_performance_profiler.cpp
index 1ea9a6653478..1860e04a3f00 100644
--- a/editor/debugger/editor_performance_profiler.cpp
+++ b/editor/debugger/editor_performance_profiler.cpp
@@ -30,6 +30,7 @@
 
 #include "editor_performance_profiler.h"
 
+#include "core/string/translation_server.h"
 #include "editor/editor_property_name_processor.h"
 #include "editor/editor_settings.h"
 #include "editor/editor_string_names.h"
@@ -80,15 +81,16 @@ void EditorPerformanceProfiler::Monitor::reset() {
 }
 
 String EditorPerformanceProfiler::_create_label(float p_value, Performance::MonitorType p_type) {
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 	switch (p_type) {
 		case Performance::MONITOR_TYPE_MEMORY: {
 			return String::humanize_size(p_value);
 		}
 		case Performance::MONITOR_TYPE_TIME: {
-			return TS->format_number(rtos(p_value * 1000).pad_decimals(2)) + " " + TTR("ms");
+			return TS->format_number(rtos(p_value * 1000).pad_decimals(2), lang) + " " + TTR("ms");
 		}
 		default: {
-			return TS->format_number(rtos(p_value));
+			return TS->format_number(rtos(p_value), lang);
 		}
 	}
 }
diff --git a/editor/debugger/editor_profiler.cpp b/editor/debugger/editor_profiler.cpp
index 33fa208f70a3..79519ad8b851 100644
--- a/editor/debugger/editor_profiler.cpp
+++ b/editor/debugger/editor_profiler.cpp
@@ -32,6 +32,7 @@
 
 #include "core/io/image.h"
 #include "core/os/os.h"
+#include "core/string/translation_server.h"
 #include "editor/editor_settings.h"
 #include "editor/editor_string_names.h"
 #include "editor/themes/editor_scale.h"
@@ -121,19 +122,21 @@ static String _get_percent_txt(float p_value, float p_total) {
 		p_total = 0.00001;
 	}
 
-	return TS->format_number(String::num((p_value / p_total) * 100, 1)) + TS->percent_sign();
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+	return TS->format_number(String::num((p_value / p_total) * 100, 1), lang) + TS->percent_sign(lang);
 }
 
 String EditorProfiler::_get_time_as_text(const Metric &m, float p_time, int p_calls) {
 	const int dmode = display_mode->get_selected();
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 
 	if (dmode == DISPLAY_FRAME_TIME) {
-		return TS->format_number(rtos(p_time * 1000).pad_decimals(2)) + " " + TTR("ms");
+		return TS->format_number(rtos(p_time * 1000).pad_decimals(2), lang) + " " + TTR("ms");
 	} else if (dmode == DISPLAY_AVERAGE_TIME) {
 		if (p_calls == 0) {
-			return TS->format_number("0.00") + " " + TTR("ms");
+			return TS->format_number("0.00", lang) + " " + TTR("ms");
 		} else {
-			return TS->format_number(rtos((p_time / p_calls) * 1000).pad_decimals(2)) + " " + TTR("ms");
+			return TS->format_number(rtos((p_time / p_calls) * 1000).pad_decimals(2), lang) + " " + TTR("ms");
 		}
 	} else if (dmode == DISPLAY_FRAME_PERCENT) {
 		return _get_percent_txt(p_time, m.frame_time);
diff --git a/editor/debugger/editor_visual_profiler.cpp b/editor/debugger/editor_visual_profiler.cpp
index 9a83277e99af..b1c488f60117 100644
--- a/editor/debugger/editor_visual_profiler.cpp
+++ b/editor/debugger/editor_visual_profiler.cpp
@@ -32,6 +32,7 @@
 
 #include "core/io/image.h"
 #include "core/os/os.h"
+#include "core/string/translation_server.h"
 #include "editor/editor_settings.h"
 #include "editor/editor_string_names.h"
 #include "editor/themes/editor_scale.h"
@@ -117,11 +118,12 @@ void EditorVisualProfiler::clear() {
 
 String EditorVisualProfiler::_get_time_as_text(float p_time) {
 	int dmode = display_mode->get_selected();
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 
 	if (dmode == DISPLAY_FRAME_TIME) {
-		return TS->format_number(String::num(p_time, 2)) + " " + TTR("ms");
+		return TS->format_number(String::num(p_time, 2), lang) + " " + TTR("ms");
 	} else if (dmode == DISPLAY_FRAME_PERCENT) {
-		return TS->format_number(String::num(p_time * 100 / graph_limit, 2)) + " " + TS->percent_sign();
+		return TS->format_number(String::num(p_time * 100 / graph_limit, 2), lang) + " " + TS->percent_sign(lang);
 	}
 
 	return "err";
diff --git a/editor/debugger/script_editor_debugger.cpp b/editor/debugger/script_editor_debugger.cpp
index b78aad172183..ba9d41ba1f76 100644
--- a/editor/debugger/script_editor_debugger.cpp
+++ b/editor/debugger/script_editor_debugger.cpp
@@ -33,7 +33,7 @@
 #include "core/config/project_settings.h"
 #include "core/debugger/debugger_marshalls.h"
 #include "core/debugger/remote_debugger.h"
-#include "core/io/marshalls.h"
+#include "core/string/translation_server.h"
 #include "core/string/ustring.h"
 #include "core/version.h"
 #include "editor/debugger/debug_adapter/debug_adapter_protocol.h"
@@ -849,7 +849,8 @@ void ScriptEditorDebugger::_set_reason_text(const String &p_reason, MessageType
 	}
 	reason->set_text(p_reason);
 
-	const PackedInt32Array boundaries = TS->string_get_word_breaks(p_reason, "", 80);
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+	const PackedInt32Array boundaries = TS->string_get_word_breaks(p_reason, lang, 80);
 	PackedStringArray lines;
 	for (int i = 0; i < boundaries.size(); i += 2) {
 		const int start = boundaries[i];
diff --git a/editor/editor_properties.cpp b/editor/editor_properties.cpp
index ce75efa462ec..06535bc6f419 100644
--- a/editor/editor_properties.cpp
+++ b/editor/editor_properties.cpp
@@ -31,6 +31,7 @@
 #include "editor_properties.h"
 
 #include "core/config/project_settings.h"
+#include "core/string/translation_server.h"
 #include "editor/create_dialog.h"
 #include "editor/editor_node.h"
 #include "editor/editor_properties_array_dict.h"
@@ -1564,7 +1565,8 @@ void EditorPropertyEasing::_draw_easing() {
 	} else {
 		decimals = 1;
 	}
-	f->draw_string(ci, Point2(10, 10 + f->get_ascent(font_size)), TS->format_number(rtos(exp).pad_decimals(decimals)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+	f->draw_string(ci, Point2(10, 10 + f->get_ascent(font_size)), TS->format_number(rtos(exp).pad_decimals(decimals), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
 }
 
 void EditorPropertyEasing::update_property() {
@@ -1579,8 +1581,9 @@ void EditorPropertyEasing::_set_preset(int p_preset) {
 }
 
 void EditorPropertyEasing::_setup_spin() {
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 	spin->setup_and_show();
-	spin->get_line_edit()->set_text(TS->format_number(rtos(get_edited_property_value())));
+	spin->get_line_edit()->set_text(TS->format_number(rtos(get_edited_property_value()), lang));
 	spin->show();
 }
 
diff --git a/editor/gui/editor_spin_slider.cpp b/editor/gui/editor_spin_slider.cpp
index 27b6bbafb7ca..dcd9a6c72ad2 100644
--- a/editor/gui/editor_spin_slider.cpp
+++ b/editor/gui/editor_spin_slider.cpp
@@ -33,20 +33,23 @@
 #include "core/input/input.h"
 #include "core/math/expression.h"
 #include "core/os/keyboard.h"
+#include "core/string/translation_server.h"
 #include "editor/editor_settings.h"
 #include "editor/themes/editor_scale.h"
 #include "scene/theme/theme_db.h"
 
 String EditorSpinSlider::get_tooltip(const Point2 &p_pos) const {
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 	if (!read_only && grabber->is_visible()) {
 		Key key = (OS::get_singleton()->has_feature("macos") || OS::get_singleton()->has_feature("web_macos") || OS::get_singleton()->has_feature("web_ios")) ? Key::META : Key::CTRL;
-		return TS->format_number(rtos(get_value())) + "\n\n" + vformat(TTR("Hold %s to round to integers.\nHold Shift for more precise changes."), find_keycode_name(key));
+		return TS->format_number(rtos(get_value()), lang) + "\n\n" + vformat(TTR("Hold %s to round to integers.\nHold Shift for more precise changes."), find_keycode_name(key));
 	}
-	return TS->format_number(rtos(get_value()));
+	return TS->format_number(rtos(get_value()), lang);
 }
 
 String EditorSpinSlider::get_text_value() const {
-	return TS->format_number(String::num(get_value(), Math::range_step_decimals(get_step())));
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+	return TS->format_number(String::num(get_value(), Math::range_step_decimals(get_step())), lang);
 }
 
 void EditorSpinSlider::gui_input(const Ref<InputEvent> &p_event) {
@@ -350,7 +353,8 @@ void EditorSpinSlider::_draw_spin_slider() {
 
 	int suffix_start = numstr.length();
 	RID num_rid = TS->create_shaped_text();
-	TS->shaped_text_add_string(num_rid, numstr + U"\u2009" + suffix, font->get_rids(), font_size, font->get_opentype_features());
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+	TS->shaped_text_add_string(num_rid, numstr + U"\u2009" + suffix, font->get_rids(), font_size, font->get_opentype_features(), lang);
 
 	float text_start = rtl ? Math::round(sb->get_offset().x) : Math::round(sb->get_offset().x + label_width + sep);
 	Vector2 text_ofs = rtl ? Vector2(text_start + (number_width - TS->shaped_text_get_width(num_rid)), vofs) : Vector2(text_start, vofs);
@@ -548,19 +552,21 @@ String EditorSpinSlider::get_suffix() const {
 }
 
 void EditorSpinSlider::_evaluate_input_text() {
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+
 	Ref<Expression> expr;
 	expr.instantiate();
 
 	// Convert commas ',' to dots '.' for French/German etc. keyboard layouts.
 	String text = value_input->get_text().replace(",", ".");
 	text = text.replace(";", ",");
-	text = TS->parse_number(text);
+	text = TS->parse_number(text, lang);
 
 	Error err = expr->parse(text);
 	if (err != OK) {
 		// If the expression failed try without converting commas to dots - they might have been for parameter separation.
 		text = value_input->get_text();
-		text = TS->parse_number(text);
+		text = TS->parse_number(text, lang);
 
 		err = expr->parse(text);
 		if (err != OK) {
diff --git a/editor/gui/editor_zoom_widget.cpp b/editor/gui/editor_zoom_widget.cpp
index ff232a854f21..a05c513d6cba 100644
--- a/editor/gui/editor_zoom_widget.cpp
+++ b/editor/gui/editor_zoom_widget.cpp
@@ -31,22 +31,24 @@
 #include "editor_zoom_widget.h"
 
 #include "core/os/keyboard.h"
+#include "core/string/translation_server.h"
 #include "editor/editor_settings.h"
 #include "editor/themes/editor_scale.h"
 
 void EditorZoomWidget::_update_zoom_label() {
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 	String zoom_text;
 	// The zoom level displayed is relative to the editor scale
 	// (like in most image editors). Its lower bound is clamped to 1 as some people
 	// lower the editor scale to increase the available real estate,
 	// even if their display doesn't have a particularly low DPI.
 	if (zoom >= 10) {
-		zoom_text = TS->format_number(rtos(Math::round((zoom / MAX(1, EDSCALE)) * 100)));
+		zoom_text = TS->format_number(rtos(Math::round((zoom / MAX(1, EDSCALE)) * 100)), lang);
 	} else {
 		// 2 decimal places if the zoom is below 10%, 1 decimal place if it's below 1000%.
-		zoom_text = TS->format_number(rtos(Math::snapped((zoom / MAX(1, EDSCALE)) * 100, (zoom >= 0.1) ? 0.1 : 0.01)));
+		zoom_text = TS->format_number(rtos(Math::snapped((zoom / MAX(1, EDSCALE)) * 100, (zoom >= 0.1) ? 0.1 : 0.01)), lang);
 	}
-	zoom_text += " " + TS->percent_sign();
+	zoom_text += " " + TS->percent_sign(lang);
 	zoom_reset->set_text(zoom_text);
 }
 
diff --git a/editor/gui/scene_tree_editor.cpp b/editor/gui/scene_tree_editor.cpp
index 2e36b66025a2..e2fd1ca6f7cb 100644
--- a/editor/gui/scene_tree_editor.cpp
+++ b/editor/gui/scene_tree_editor.cpp
@@ -32,6 +32,7 @@
 
 #include "core/config/project_settings.h"
 #include "core/object/script_language.h"
+#include "core/string/translation_server.h"
 #include "editor/editor_dock_manager.h"
 #include "editor/editor_file_system.h"
 #include "editor/editor_node.h"
@@ -144,7 +145,8 @@ void SceneTreeEditor::_cell_button_pressed(Object *p_item, int p_column, int p_i
 
 		// Limit the line width while keeping some padding.
 		// It is not efficient, but it does not have to be.
-		const PackedInt32Array boundaries = TS->string_get_word_breaks(all_warnings, "", 80);
+		const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+		const PackedInt32Array boundaries = TS->string_get_word_breaks(all_warnings, lang, 80);
 		PackedStringArray lines;
 		for (int i = 0; i < boundaries.size(); i += 2) {
 			const int start = boundaries[i];
@@ -531,7 +533,8 @@ void SceneTreeEditor::_update_node_tooltip(Node *p_node, TreeItem *p_item) {
 	tooltip += "\n" + TTR("Type:") + " " + (custom_type != StringName() ? String(custom_type) : p_node->get_class());
 
 	if (!p_node->get_editor_description().is_empty()) {
-		const PackedInt32Array boundaries = TS->string_get_word_breaks(p_node->get_editor_description(), "", 80);
+		const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+		const PackedInt32Array boundaries = TS->string_get_word_breaks(p_node->get_editor_description(), lang, 80);
 		tooltip += "\n";
 
 		for (int i = 0; i < boundaries.size(); i += 2) {
diff --git a/editor/plugins/canvas_item_editor_plugin.cpp b/editor/plugins/canvas_item_editor_plugin.cpp
index e3cf3dbbf211..cff14d9efc2a 100644
--- a/editor/plugins/canvas_item_editor_plugin.cpp
+++ b/editor/plugins/canvas_item_editor_plugin.cpp
@@ -33,6 +33,7 @@
 #include "core/config/project_settings.h"
 #include "core/input/input.h"
 #include "core/os/keyboard.h"
+#include "core/string/translation_server.h"
 #include "editor/debugger/editor_debugger_node.h"
 #include "editor/editor_main_screen.h"
 #include "editor/editor_node.h"
@@ -2857,14 +2858,16 @@ void CanvasItemEditor::_draw_text_at_position(Point2 p_position, const String &p
 }
 
 void CanvasItemEditor::_draw_margin_at_position(int p_value, Point2 p_position, Side p_side) {
-	String str = TS->format_number(vformat("%d " + TTR("px"), p_value));
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+	String str = TS->format_number(vformat("%d " + TTR("px"), p_value), lang);
 	if (p_value != 0) {
 		_draw_text_at_position(p_position, str, p_side);
 	}
 }
 
 void CanvasItemEditor::_draw_percentage_at_position(real_t p_value, Point2 p_position, Side p_side) {
-	String str = TS->format_number(vformat("%.1f ", p_value * 100.0)) + TS->percent_sign();
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+	String str = TS->format_number(vformat("%.1f ", p_value * 100.0), lang) + TS->percent_sign(lang);
 	if (p_value != 0) {
 		_draw_text_at_position(p_position, str, p_side);
 	}
@@ -2906,8 +2909,9 @@ void CanvasItemEditor::_draw_guides() {
 	Color text_color = get_theme_color(SceneStringName(font_color), EditorStringName(Editor));
 	Color outline_color = text_color.inverted();
 	const float outline_size = 2;
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 	if (drag_type == DRAG_DOUBLE_GUIDE || drag_type == DRAG_V_GUIDE) {
-		String str = TS->format_number(vformat("%d px", Math::round(xform.affine_inverse().xform(dragged_guide_pos).x)));
+		String str = TS->format_number(vformat("%d px", Math::round(xform.affine_inverse().xform(dragged_guide_pos).x)), lang);
 		Ref<Font> font = get_theme_font(SNAME("bold"), EditorStringName(EditorFonts));
 		int font_size = 1.3 * get_theme_font_size(SNAME("bold_size"), EditorStringName(EditorFonts));
 		Size2 text_size = font->get_string_size(str, HORIZONTAL_ALIGNMENT_LEFT, -1, font_size);
@@ -2916,7 +2920,7 @@ void CanvasItemEditor::_draw_guides() {
 		viewport->draw_line(Point2(dragged_guide_pos.x, 0), Point2(dragged_guide_pos.x, viewport->get_size().y), guide_color, Math::round(EDSCALE));
 	}
 	if (drag_type == DRAG_DOUBLE_GUIDE || drag_type == DRAG_H_GUIDE) {
-		String str = TS->format_number(vformat("%d px", Math::round(xform.affine_inverse().xform(dragged_guide_pos).y)));
+		String str = TS->format_number(vformat("%d px", Math::round(xform.affine_inverse().xform(dragged_guide_pos).y)), lang);
 		Ref<Font> font = get_theme_font(SNAME("bold"), EditorStringName(EditorFonts));
 		int font_size = 1.3 * get_theme_font_size(SNAME("bold_size"), EditorStringName(EditorFonts));
 		Size2 text_size = font->get_string_size(str, HORIZONTAL_ALIGNMENT_LEFT, -1, font_size);
@@ -2947,6 +2951,7 @@ void CanvasItemEditor::_draw_rulers() {
 	font_color.a = 0.8;
 	Ref<Font> font = get_theme_font(SNAME("rulers"), EditorStringName(EditorFonts));
 	int font_size = get_theme_font_size(SNAME("rulers_size"), EditorStringName(EditorFonts));
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 
 	// The rule transform
 	Transform2D ruler_transform;
@@ -2993,7 +2998,7 @@ void CanvasItemEditor::_draw_rulers() {
 		if (i % (major_subdivision * minor_subdivision) == 0) {
 			viewport->draw_line(Point2(position.x, 0), Point2(position.x, RULER_WIDTH), graduation_color, Math::round(EDSCALE));
 			real_t val = (ruler_transform * major_subdivide * minor_subdivide).xform(Point2(i, 0)).x;
-			viewport->draw_string(font, Point2(position.x + 2, font->get_height(font_size)), TS->format_number(vformat(((int)val == val) ? "%d" : "%.1f", val)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
+			viewport->draw_string(font, Point2(position.x + 2, font->get_height(font_size)), TS->format_number(vformat(((int)val == val) ? "%d" : "%.1f", val), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
 		} else {
 			if (i % minor_subdivision == 0) {
 				viewport->draw_line(Point2(position.x, RULER_WIDTH * 0.33), Point2(position.x, RULER_WIDTH), graduation_color, Math::round(EDSCALE));
@@ -3013,7 +3018,7 @@ void CanvasItemEditor::_draw_rulers() {
 
 			Transform2D text_xform = Transform2D(-Math_PI / 2.0, Point2(font->get_height(font_size), position.y - 2));
 			viewport->draw_set_transform_matrix(viewport->get_transform() * text_xform);
-			viewport->draw_string(font, Point2(), TS->format_number(vformat(((int)val == val) ? "%d" : "%.1f", val)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
+			viewport->draw_string(font, Point2(), TS->format_number(vformat(((int)val == val) ? "%d" : "%.1f", val), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
 			viewport->draw_set_transform_matrix(viewport->get_transform());
 
 		} else {
@@ -3179,8 +3184,9 @@ void CanvasItemEditor::_draw_ruler_tool() {
 			return;
 		}
 
-		viewport->draw_string_outline(font, text_pos, TS->format_number(vformat("%.1f px", length_vector.length())), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-		viewport->draw_string(font, text_pos, TS->format_number(vformat("%.1f px", length_vector.length())), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
+		const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+		viewport->draw_string_outline(font, text_pos, TS->format_number(vformat("%.1f px", length_vector.length()), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+		viewport->draw_string(font, text_pos, TS->format_number(vformat("%.1f px", length_vector.length()), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
 
 		if (draw_secondary_lines) {
 			const int horizontal_angle = round(180 * horizontal_angle_rad / Math_PI);
@@ -3188,19 +3194,19 @@ void CanvasItemEditor::_draw_ruler_tool() {
 
 			Point2 text_pos2 = text_pos;
 			text_pos2.x = begin.x < text_pos.x ? MIN(text_pos.x - text_width, begin.x - text_width / 2) : MAX(text_pos.x + text_width, begin.x - text_width / 2);
-			viewport->draw_string_outline(font, text_pos2, TS->format_number(vformat("%.1f px", length_vector.y)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-			viewport->draw_string(font, text_pos2, TS->format_number(vformat("%.1f px", length_vector.y)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
+			viewport->draw_string_outline(font, text_pos2, TS->format_number(vformat("%.1f px", length_vector.y), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+			viewport->draw_string(font, text_pos2, TS->format_number(vformat("%.1f px", length_vector.y), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
 
 			Point2 v_angle_text_pos;
 			v_angle_text_pos.x = CLAMP(begin.x - angle_text_width / 2, angle_text_width / 2, viewport->get_rect().size.x - angle_text_width);
 			v_angle_text_pos.y = begin.y < end.y ? MIN(text_pos2.y - 2 * text_height, begin.y - text_height * 0.5) : MAX(text_pos2.y + text_height * 3, begin.y + text_height * 1.5);
-			viewport->draw_string_outline(font, v_angle_text_pos, TS->format_number(vformat(U"%d°", vertical_angle)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-			viewport->draw_string(font, v_angle_text_pos, TS->format_number(vformat(U"%d°", vertical_angle)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
+			viewport->draw_string_outline(font, v_angle_text_pos, TS->format_number(vformat(U"%d°", vertical_angle), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+			viewport->draw_string(font, v_angle_text_pos, TS->format_number(vformat(U"%d°", vertical_angle), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
 
 			text_pos2 = text_pos;
 			text_pos2.y = end.y < text_pos.y ? MIN(text_pos.y - text_height * 2, end.y - text_height / 2) : MAX(text_pos.y + text_height * 2, end.y - text_height / 2);
-			viewport->draw_string_outline(font, text_pos2, TS->format_number(vformat("%.1f px", length_vector.x)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-			viewport->draw_string(font, text_pos2, TS->format_number(vformat("%.1f px", length_vector.x)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
+			viewport->draw_string_outline(font, text_pos2, TS->format_number(vformat("%.1f px", length_vector.x), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+			viewport->draw_string(font, text_pos2, TS->format_number(vformat("%.1f px", length_vector.x), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
 
 			Point2 h_angle_text_pos;
 			h_angle_text_pos.x = CLAMP(end.x - angle_text_width / 2, angle_text_width / 2, viewport->get_rect().size.x - angle_text_width);
@@ -3217,8 +3223,8 @@ void CanvasItemEditor::_draw_ruler_tool() {
 					h_angle_text_pos.y = MIN(text_pos.y - height_multiplier * text_height, MIN(end.y - text_height * 0.5, text_pos2.y - height_multiplier * text_height));
 				}
 			}
-			viewport->draw_string_outline(font, h_angle_text_pos, TS->format_number(vformat(U"%d°", horizontal_angle)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-			viewport->draw_string(font, h_angle_text_pos, TS->format_number(vformat(U"%d°", horizontal_angle)), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
+			viewport->draw_string_outline(font, h_angle_text_pos, TS->format_number(vformat(U"%d°", horizontal_angle), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+			viewport->draw_string(font, h_angle_text_pos, TS->format_number(vformat(U"%d°", horizontal_angle), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
 		}
 
 		if (grid_snap_active) {
@@ -3227,21 +3233,21 @@ void CanvasItemEditor::_draw_ruler_tool() {
 			text_pos.y = CLAMP(text_pos.y, text_height * 2.5, viewport->get_rect().size.y - text_height / 2);
 
 			if (draw_secondary_lines) {
-				viewport->draw_string_outline(font, text_pos, TS->format_number(vformat("%.2f " + TTR("units"), (length_vector / grid_step).length())), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-				viewport->draw_string(font, text_pos, TS->format_number(vformat("%.2f " + TTR("units"), (length_vector / grid_step).length())), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
+				viewport->draw_string_outline(font, text_pos, TS->format_number(vformat("%.2f " + TTR("units"), (length_vector / grid_step).length()), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+				viewport->draw_string(font, text_pos, TS->format_number(vformat("%.2f " + TTR("units"), (length_vector / grid_step).length()), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
 
 				Point2 text_pos2 = text_pos;
 				text_pos2.x = begin.x < text_pos.x ? MIN(text_pos.x - text_width, begin.x - text_width / 2) : MAX(text_pos.x + text_width, begin.x - text_width / 2);
-				viewport->draw_string_outline(font, text_pos2, TS->format_number(vformat("%d " + TTR("units"), roundf(length_vector.y / grid_step.y))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-				viewport->draw_string(font, text_pos2, TS->format_number(vformat("%d " + TTR("units"), roundf(length_vector.y / grid_step.y))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
+				viewport->draw_string_outline(font, text_pos2, TS->format_number(vformat("%d " + TTR("units"), roundf(length_vector.y / grid_step.y)), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+				viewport->draw_string(font, text_pos2, TS->format_number(vformat("%d " + TTR("units"), roundf(length_vector.y / grid_step.y)), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
 
 				text_pos2 = text_pos;
 				text_pos2.y = end.y < text_pos.y ? MIN(text_pos.y - text_height * 2, end.y + text_height / 2) : MAX(text_pos.y + text_height * 2, end.y + text_height / 2);
-				viewport->draw_string_outline(font, text_pos2, TS->format_number(vformat("%d " + TTR("units"), roundf(length_vector.x / grid_step.x))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-				viewport->draw_string(font, text_pos2, TS->format_number(vformat("%d " + TTR("units"), roundf(length_vector.x / grid_step.x))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
+				viewport->draw_string_outline(font, text_pos2, TS->format_number(vformat("%d " + TTR("units"), roundf(length_vector.x / grid_step.x)), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+				viewport->draw_string(font, text_pos2, TS->format_number(vformat("%d " + TTR("units"), roundf(length_vector.x / grid_step.x)), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_secondary_color);
 			} else {
-				viewport->draw_string_outline(font, text_pos, TS->format_number(vformat("%d " + TTR("units"), roundf((length_vector / grid_step).length()))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
-				viewport->draw_string(font, text_pos, TS->format_number(vformat("%d " + TTR("units"), roundf((length_vector / grid_step).length()))), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
+				viewport->draw_string_outline(font, text_pos, TS->format_number(vformat("%d " + TTR("units"), roundf((length_vector / grid_step).length())), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, outline_size, outline_color);
+				viewport->draw_string(font, text_pos, TS->format_number(vformat("%d " + TTR("units"), roundf((length_vector / grid_step).length())), lang), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, font_color);
 			}
 		}
 	} else {
@@ -3818,7 +3824,8 @@ void CanvasItemEditor::_draw_message() {
 
 		double snap = EDITOR_GET("interface/inspector/default_float_step");
 		int snap_step_decimals = Math::range_step_decimals(snap);
-#define FORMAT(value) (TS->format_number(String::num(value, snap_step_decimals)))
+		const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
+#define FORMAT(value) (TS->format_number(String::num(value, snap_step_decimals), lang))
 
 		switch (drag_type) {
 			case DRAG_MOVE:
diff --git a/editor/plugins/editor_plugin_settings.cpp b/editor/plugins/editor_plugin_settings.cpp
index 5949bc141f52..22fe0feac874 100644
--- a/editor/plugins/editor_plugin_settings.cpp
+++ b/editor/plugins/editor_plugin_settings.cpp
@@ -34,7 +34,7 @@
 #include "core/io/config_file.h"
 #include "core/io/dir_access.h"
 #include "core/io/file_access.h"
-#include "core/os/main_loop.h"
+#include "core/string/translation_server.h"
 #include "editor/editor_node.h"
 #include "editor/editor_string_names.h"
 #include "editor/themes/editor_scale.h"
@@ -62,6 +62,7 @@ void EditorPluginSettings::update_plugins() {
 	Vector<String> plugins = _get_plugins("res://addons");
 	plugins.sort();
 
+	const String &lang = TranslationServer::get_singleton()->get_editor_domain()->get_locale();
 	for (int i = 0; i < plugins.size(); i++) {
 		Ref<ConfigFile> cfg;
 		cfg.instantiate();
@@ -91,7 +92,7 @@ void EditorPluginSettings::update_plugins() {
 				bool is_enabled = EditorNode::get_singleton()->is_addon_plugin_enabled(path);
 				Color disabled_color = get_theme_color(SNAME("font_disabled_color"), EditorStringName(Editor));
 
-				const PackedInt32Array boundaries = TS->string_get_word_breaks(description, "", 80);
+				const PackedInt32Array boundaries = TS->string_get_word_breaks(description, lang, 80);
 				String wrapped_description;
 
 				for (int j = 0; j < boundaries.size(); j += 2) {
diff --git a/scene/3d/label_3d.cpp b/scene/3d/label_3d.cpp
index 6b3510a72a17..c5cef3bdf4e0 100644
--- a/scene/3d/label_3d.cpp
+++ b/scene/3d/label_3d.cpp
@@ -30,6 +30,7 @@
 
 #include "label_3d.h"
 
+#include "core/string/translation_server.h"
 #include "scene/main/window.h"
 #include "scene/resources/theme.h"
 #include "scene/theme/theme_db.h"
@@ -474,8 +475,9 @@ void Label3D::_shape() {
 		TS->shaped_text_clear(text_rid);
 		TS->shaped_text_set_direction(text_rid, text_direction);
 
-		String txt = (uppercase) ? TS->string_to_upper(xl_text, language) : xl_text;
-		TS->shaped_text_add_string(text_rid, txt, font->get_rids(), font_size, font->get_opentype_features(), language);
+		const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+		String txt = (uppercase) ? TS->string_to_upper(xl_text, lang) : xl_text;
+		TS->shaped_text_add_string(text_rid, txt, font->get_rids(), font_size, font->get_opentype_features(), lang);
 
 		TypedArray<Vector3i> stt;
 		if (st_parser == TextServer::STRUCTURED_TEXT_CUSTOM) {
diff --git a/scene/gui/button.cpp b/scene/gui/button.cpp
index 4bd85cbde992..b464f8b943a1 100644
--- a/scene/gui/button.cpp
+++ b/scene/gui/button.cpp
@@ -30,6 +30,7 @@
 
 #include "button.h"
 
+#include "core/string/translation_server.h"
 #include "scene/theme/theme_db.h"
 
 Size2 Button::get_minimum_size() const {
@@ -567,7 +568,8 @@ void Button::_shape(Ref<TextParagraph> p_paragraph, String p_text) {
 	} else {
 		p_paragraph->set_direction((TextServer::Direction)text_direction);
 	}
-	p_paragraph->add_string(p_text, font, font_size, language);
+	const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+	p_paragraph->add_string(p_text, font, font_size, lang);
 	p_paragraph->set_text_overrun_behavior(overrun_behavior);
 }
 
diff --git a/scene/gui/code_edit.cpp b/scene/gui/code_edit.cpp
index 9d7e2496a223..5a6d2a7d6d8c 100644
--- a/scene/gui/code_edit.cpp
+++ b/scene/gui/code_edit.cpp
@@ -33,6 +33,7 @@
 
 #include "core/os/keyboard.h"
 #include "core/string/string_builder.h"
+#include "core/string/translation_server.h"
 #include "core/string/ustring.h"
 #include "scene/theme/theme_db.h"
 
@@ -60,6 +61,7 @@ void CodeEdit::_notification(int p_what) {
 			const bool caret_visible = is_caret_visible();
 			const bool rtl = is_layout_rtl();
 			const int row_height = get_line_height();
+			const String &lang = TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale();
 
 			if (line_length_guideline_columns.size() > 0) {
 				const int xmargin_beg = theme_cache.style_normal->get_margin(SIDE_LEFT) + get_total_gutter_width();
@@ -199,7 +201,7 @@ void CodeEdit::_notification(int p_what) {
 
 						Ref<TextLine> tl;
 						tl.instantiate();
-						tl->add_string(code_completion_options[l].display, theme_cache.font, theme_cache.font_size);
+						tl->add_string(code_completion_options[l].display, theme_cache.font, theme_cache.font_size, lang);
 
 						int yofs = (row_height - tl->get_size().y) / 2;
 						Point2 title_pos(code_completion_rect.position.x, code_completion_rect.position.y + i * row_height + yofs);
@@ -1481,14 +1483,15 @@ void CodeEdit::_line_number_draw_callback(int p_line, int p_gutter, const Rect2
 	if (E) {
 		text_rid = E->value;
 	} else {
+		const String &lang = TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale();
 		String fc = String::num_int64(p_line + 1).lpad(line_number_digits, line_number_padding);
 		if (is_localizing_numeral_system()) {
-			fc = TS->format_number(fc);
+			fc = TS->format_number(fc, lang);
 		}
 
 		text_rid = TS->create_shaped_text();
 		if (theme_cache.font.is_valid()) {
-			TS->shaped_text_add_string(text_rid, fc, theme_cache.font->get_rids(), theme_cache.font_size, theme_cache.font->get_opentype_features());
+			TS->shaped_text_add_string(text_rid, fc, theme_cache.font->get_rids(), theme_cache.font_size, theme_cache.font->get_opentype_features(), lang);
 		}
 		line_number_text_cache.insert(p_line, text_rid);
 	}
diff --git a/scene/gui/item_list.cpp b/scene/gui/item_list.cpp
index 1ba5ef309b0f..4801cbcb728c 100644
--- a/scene/gui/item_list.cpp
+++ b/scene/gui/item_list.cpp
@@ -32,6 +32,7 @@
 
 #include "core/config/project_settings.h"
 #include "core/os/os.h"
+#include "core/string/translation_server.h"
 #include "scene/theme/theme_db.h"
 
 void ItemList::_shape_text(int p_idx) {
@@ -43,7 +44,8 @@ void ItemList::_shape_text(int p_idx) {
 	} else {
 		item.text_buf->set_direction((TextServer::Direction)item.text_direction);
 	}
-	item.text_buf->add_string(item.xl_text, theme_cache.font, theme_cache.font_size, item.language);
+	const String &lang = item.language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : item.language;
+	item.text_buf->add_string(item.xl_text, theme_cache.font, theme_cache.font_size, lang);
 	if (icon_mode == ICON_MODE_TOP && max_text_lines > 0) {
 		item.text_buf->set_break_flags(TextServer::BREAK_MANDATORY | TextServer::BREAK_WORD_BOUND | TextServer::BREAK_GRAPHEME_BOUND | TextServer::BREAK_TRIM_EDGE_SPACES);
 	} else {
diff --git a/scene/gui/label.cpp b/scene/gui/label.cpp
index 42b4e56b484b..7e30e0329859 100644
--- a/scene/gui/label.cpp
+++ b/scene/gui/label.cpp
@@ -32,7 +32,7 @@
 
 #include "core/config/project_settings.h"
 #include "core/string/print_string.h"
-#include "core/string/translation.h"
+#include "core/string/translation_server.h"
 #include "scene/gui/container.h"
 #include "scene/theme/theme_db.h"
 #include "servers/text_server.h"
@@ -117,12 +117,13 @@ void Label::_shape() {
 		const Ref<Font> &font = (settings.is_valid() && settings->get_font().is_valid()) ? settings->get_font() : theme_cache.font;
 		int font_size = settings.is_valid() ? settings->get_font_size() : theme_cache.font_size;
 		ERR_FAIL_COND(font.is_null());
-		String txt = (uppercase) ? TS->string_to_upper(xl_text, language) : xl_text;
+		const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+		String txt = (uppercase) ? TS->string_to_upper(xl_text, lang) : xl_text;
 		if (visible_chars >= 0 && visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING) {
 			txt = txt.substr(0, visible_chars);
 		}
 		if (dirty) {
-			TS->shaped_text_add_string(text_rid, txt, font->get_rids(), font_size, font->get_opentype_features(), language);
+			TS->shaped_text_add_string(text_rid, txt, font->get_rids(), font_size, font->get_opentype_features(), lang);
 		} else {
 			int spans = TS->shaped_get_span_count(text_rid);
 			for (int i = 0; i < spans; i++) {
diff --git a/scene/gui/line_edit.cpp b/scene/gui/line_edit.cpp
index 3f979f7c20aa..22f63d5b7714 100644
--- a/scene/gui/line_edit.cpp
+++ b/scene/gui/line_edit.cpp
@@ -34,7 +34,7 @@
 #include "core/os/keyboard.h"
 #include "core/os/os.h"
 #include "core/string/print_string.h"
-#include "core/string/translation.h"
+#include "core/string/translation_server.h"
 #include "scene/gui/label.h"
 #include "scene/main/window.h"
 #include "scene/theme/theme_db.h"
@@ -2569,7 +2569,8 @@ void LineEdit::_shape() {
 	}
 	TS->shaped_text_set_preserve_control(text_rid, draw_control_chars);
 
-	TS->shaped_text_add_string(text_rid, t, font->get_rids(), font_size, font->get_opentype_features(), language);
+	const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+	TS->shaped_text_add_string(text_rid, t, font->get_rids(), font_size, font->get_opentype_features(), lang);
 	TS->shaped_text_set_bidi_override(text_rid, structured_text_parser(st_parser, st_args, t));
 
 	full_width = TS->shaped_text_get_size(text_rid).x;
diff --git a/scene/gui/link_button.cpp b/scene/gui/link_button.cpp
index 1142ba37f564..066d284a465c 100644
--- a/scene/gui/link_button.cpp
+++ b/scene/gui/link_button.cpp
@@ -30,7 +30,7 @@
 
 #include "link_button.h"
 
-#include "core/string/translation.h"
+#include "core/string/translation_server.h"
 #include "scene/theme/theme_db.h"
 
 void LinkButton::_shape() {
@@ -44,7 +44,8 @@ void LinkButton::_shape() {
 		text_buf->set_direction((TextServer::Direction)text_direction);
 	}
 	TS->shaped_text_set_bidi_override(text_buf->get_rid(), structured_text_parser(st_parser, st_args, xl_text));
-	text_buf->add_string(xl_text, font, font_size, language);
+	const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+	text_buf->add_string(xl_text, font, font_size, lang);
 }
 
 void LinkButton::set_text(const String &p_text) {
diff --git a/scene/gui/menu_bar.cpp b/scene/gui/menu_bar.cpp
index 9853d699d40b..f36956f8e884 100644
--- a/scene/gui/menu_bar.cpp
+++ b/scene/gui/menu_bar.cpp
@@ -30,7 +30,7 @@
 
 #include "menu_bar.h"
 
-#include "core/os/keyboard.h"
+#include "core/string/translation_server.h"
 #include "scene/main/window.h"
 #include "scene/theme/theme_db.h"
 
@@ -491,13 +491,15 @@ void MenuBar::_draw_menu_item(int p_index) {
 }
 
 void MenuBar::shape(Menu &p_menu) {
+	const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+
 	p_menu.text_buf->clear();
 	if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
 		p_menu.text_buf->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
 	} else {
 		p_menu.text_buf->set_direction((TextServer::Direction)text_direction);
 	}
-	p_menu.text_buf->add_string(atr(p_menu.name), theme_cache.font, theme_cache.font_size, language);
+	p_menu.text_buf->add_string(atr(p_menu.name), theme_cache.font, theme_cache.font_size, lang);
 }
 
 void MenuBar::_refresh_menu_names() {
diff --git a/scene/gui/popup_menu.cpp b/scene/gui/popup_menu.cpp
index 3c04094526df..48790da82c58 100644
--- a/scene/gui/popup_menu.cpp
+++ b/scene/gui/popup_menu.cpp
@@ -36,7 +36,7 @@
 #include "core/os/keyboard.h"
 #include "core/os/os.h"
 #include "core/string/print_string.h"
-#include "core/string/translation.h"
+#include "core/string/translation_server.h"
 #include "scene/gui/menu_bar.h"
 #include "scene/theme/theme_db.h"
 
@@ -952,17 +952,18 @@ void PopupMenu::_shape_item(int p_idx) {
 
 		Ref<Font> font = items[p_idx].separator ? theme_cache.font_separator : theme_cache.font;
 		int font_size = items[p_idx].separator ? theme_cache.font_separator_size : theme_cache.font_size;
+		const String &lang = TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale();
 
 		if (items[p_idx].text_direction == Control::TEXT_DIRECTION_INHERITED) {
 			items.write[p_idx].text_buf->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
 		} else {
 			items.write[p_idx].text_buf->set_direction((TextServer::Direction)items[p_idx].text_direction);
 		}
-		items.write[p_idx].text_buf->add_string(items.write[p_idx].xl_text, font, font_size, items[p_idx].language);
+		items.write[p_idx].text_buf->add_string(items.write[p_idx].xl_text, font, font_size, items[p_idx].language.is_empty() ? lang : items[p_idx].language);
 
 		items.write[p_idx].accel_text_buf->clear();
 		items.write[p_idx].accel_text_buf->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
-		items.write[p_idx].accel_text_buf->add_string(_get_accel_text(items.write[p_idx]), font, font_size);
+		items.write[p_idx].accel_text_buf->add_string(_get_accel_text(items.write[p_idx]), font, font_size, lang);
 		items.write[p_idx].dirty = false;
 	}
 }
diff --git a/scene/gui/progress_bar.cpp b/scene/gui/progress_bar.cpp
index 90ce01e38377..e4fd34531c4d 100644
--- a/scene/gui/progress_bar.cpp
+++ b/scene/gui/progress_bar.cpp
@@ -30,6 +30,7 @@
 
 #include "progress_bar.h"
 
+#include "core/string/translation_server.h"
 #include "scene/resources/text_line.h"
 #include "scene/theme/theme_db.h"
 
@@ -159,7 +160,8 @@ void ProgressBar::_notification(int p_what) {
 				String txt = itos(int(ratio * 100));
 
 				if (is_localizing_numeral_system()) {
-					txt = TS->format_number(txt) + TS->percent_sign();
+					const String &lang = TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale();
+					txt = TS->format_number(txt, lang) + TS->percent_sign(lang);
 				} else {
 					txt += String("%");
 				}
diff --git a/scene/gui/rich_text_label.cpp b/scene/gui/rich_text_label.cpp
index 26141663c1c5..5efcb5c66d71 100644
--- a/scene/gui/rich_text_label.cpp
+++ b/scene/gui/rich_text_label.cpp
@@ -35,7 +35,7 @@
 #include "core/math/math_defs.h"
 #include "core/os/keyboard.h"
 #include "core/os/os.h"
-#include "core/string/translation.h"
+#include "core/string/translation_server.h"
 #include "scene/gui/label.h"
 #include "scene/gui/rich_text_effect.h"
 #include "scene/resources/atlas_texture.h"
@@ -302,7 +302,7 @@ void RichTextLabel::_update_line_font(ItemFrame *p_frame, int p_line, const Ref<
 					String prefix = _get_prefix(list_l.from, list_index, list_items);
 					list_l.text_prefix.instantiate();
 					list_l.text_prefix->set_direction(_find_direction(list_l.from));
-					list_l.text_prefix->add_string(prefix, font, font_size);
+					list_l.text_prefix->add_string(prefix, font, font_size, _find_language(list_l.from));
 					list_items.write[0]->max_width = MAX(list_items[0]->max_width, list_l.text_prefix->get_size().x);
 				}
 			}
@@ -492,7 +492,7 @@ float RichTextLabel::_shape_line(ItemFrame *p_frame, int p_line, const Ref<Font>
 					String prefix = _get_prefix(list_l.from, list_index, list_items);
 					list_l.text_prefix.instantiate();
 					list_l.text_prefix->set_direction(_find_direction(list_l.from));
-					list_l.text_prefix->add_string(prefix, font, font_size);
+					list_l.text_prefix->add_string(prefix, font, font_size, _find_language(list_l.from));
 					list_items.write[0]->max_width = MAX(list_items[0]->max_width, list_l.text_prefix->get_size().x);
 				}
 			}
@@ -527,7 +527,7 @@ float RichTextLabel::_shape_line(ItemFrame *p_frame, int p_line, const Ref<Font>
 			case ITEM_DROPCAP: {
 				// Add dropcap.
 				const ItemDropcap *dc = static_cast<ItemDropcap *>(it);
-				l.text_buf->set_dropcap(dc->text, dc->font, dc->font_size, dc->dropcap_margins);
+				l.text_buf->set_dropcap(dc->text, dc->font, dc->font_size, dc->dropcap_margins, _find_language(it));
 				l.dc_color = dc->color;
 				l.dc_ol_size = dc->ol_size;
 				l.dc_ol_color = dc->ol_color;
@@ -549,7 +549,7 @@ float RichTextLabel::_shape_line(ItemFrame *p_frame, int p_line, const Ref<Font>
 				if (font_size_it && font_size_it->font_size > 0) {
 					font_size = font_size_it->font_size;
 				}
-				l.text_buf->add_string(String::chr(0x200B), font, font_size);
+				l.text_buf->add_string(String::chr(0x200B), font, font_size, _find_language(it));
 				txt += "\n";
 				l.char_count++;
 				remaining_characters--;
@@ -572,14 +572,13 @@ float RichTextLabel::_shape_line(ItemFrame *p_frame, int p_line, const Ref<Font>
 				if (font_size_it && font_size_it->font_size > 0) {
 					font_size = font_size_it->font_size;
 				}
-				String lang = _find_language(it);
 				String tx = t->text;
 				if (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING && visible_characters >= 0 && remaining_characters >= 0) {
 					tx = tx.substr(0, remaining_characters);
 				}
 				remaining_characters -= tx.length();
 
-				l.text_buf->add_string(tx, font, font_size, lang, it->rid);
+				l.text_buf->add_string(tx, font, font_size, _find_language(it), it->rid);
 				txt += tx;
 				l.char_count += tx.length();
 			} break;
@@ -2602,21 +2601,24 @@ TextServer::StructuredTextParser RichTextLabel::_find_stt(Item *p_item) {
 }
 
 String RichTextLabel::_find_language(Item *p_item) {
-	Item *item = p_item;
+	String lang = language;
 
+	Item *item = p_item;
 	while (item) {
 		if (item->type == ITEM_LANGUAGE) {
 			ItemLanguage *p = static_cast<ItemLanguage *>(item);
-			return p->language;
+			lang = p->language;
+			break;
 		} else if (item->type == ITEM_PARAGRAPH) {
 			ItemParagraph *p = static_cast<ItemParagraph *>(item);
-			return p->language;
+			lang = p->language;
+			break;
 		}
 
 		item = item->parent;
 	}
 
-	return language;
+	return lang.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : lang;
 }
 
 Color RichTextLabel::_find_color(Item *p_item, const Color &p_default_color) {
diff --git a/scene/gui/spin_box.cpp b/scene/gui/spin_box.cpp
index 01c2b9bffe18..be06fe4ab944 100644
--- a/scene/gui/spin_box.cpp
+++ b/scene/gui/spin_box.cpp
@@ -32,6 +32,7 @@
 
 #include "core/input/input.h"
 #include "core/math/expression.h"
+#include "core/string/translation_server.h"
 #include "scene/theme/theme_db.h"
 
 Size2 SpinBox::get_minimum_size() const {
@@ -43,7 +44,8 @@ Size2 SpinBox::get_minimum_size() const {
 void SpinBox::_update_text(bool p_keep_line_edit) {
 	String value = String::num(get_value(), Math::range_step_decimals(get_step()));
 	if (is_localizing_numeral_system()) {
-		value = TS->format_number(value);
+		const String &lang = TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale();
+		value = TS->format_number(value, lang);
 	}
 
 	if (!line_edit->is_editing()) {
@@ -64,13 +66,15 @@ void SpinBox::_update_text(bool p_keep_line_edit) {
 }
 
 void SpinBox::_text_submitted(const String &p_string) {
+	const String &lang = TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale();
+
 	Ref<Expression> expr;
 	expr.instantiate();
 
 	// Convert commas ',' to dots '.' for French/German etc. keyboard layouts.
 	String text = p_string.replace(",", ".");
 	text = text.replace(";", ",");
-	text = TS->parse_number(text);
+	text = TS->parse_number(text, lang);
 	// Ignore the prefix and suffix in the expression.
 	text = text.trim_prefix(prefix + " ").trim_suffix(" " + suffix);
 
@@ -78,7 +82,7 @@ void SpinBox::_text_submitted(const String &p_string) {
 	if (err != OK) {
 		// If the expression failed try without converting commas to dots - they might have been for parameter separation.
 		text = p_string;
-		text = TS->parse_number(text);
+		text = TS->parse_number(text, lang);
 		text = text.trim_prefix(prefix + " ").trim_suffix(" " + suffix);
 
 		err = expr->parse(text);
diff --git a/scene/gui/tab_bar.cpp b/scene/gui/tab_bar.cpp
index 6cc7ec3bd5ce..4614aa69c1ea 100644
--- a/scene/gui/tab_bar.cpp
+++ b/scene/gui/tab_bar.cpp
@@ -30,7 +30,7 @@
 
 #include "tab_bar.h"
 
-#include "core/string/translation.h"
+#include "core/string/translation_server.h"
 #include "scene/gui/box_container.h"
 #include "scene/gui/label.h"
 #include "scene/gui/texture_rect.h"
@@ -345,7 +345,8 @@ void TabBar::_shape(int p_tab) {
 		tabs.write[p_tab].text_buf->set_direction((TextServer::Direction)tabs[p_tab].text_direction);
 	}
 
-	tabs.write[p_tab].text_buf->add_string(atr(tabs[p_tab].text), theme_cache.font, theme_cache.font_size, tabs[p_tab].language);
+	const String &lang = tabs[p_tab].language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : tabs[p_tab].language;
+	tabs.write[p_tab].text_buf->add_string(atr(tabs[p_tab].text), theme_cache.font, theme_cache.font_size, lang);
 }
 
 void TabBar::_notification(int p_what) {
diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index b1918ff23fc4..e830a9a0817b 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -1117,9 +1117,10 @@ void TextEdit::_notification(int p_what) {
 										break;
 									}
 
+									const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
 									Ref<TextLine> tl;
 									tl.instantiate();
-									tl->add_string(txt, theme_cache.font, theme_cache.font_size);
+									tl->add_string(txt, theme_cache.font, theme_cache.font_size, lang);
 
 									int yofs = ofs_y + (row_height - tl->get_size().y) / 2;
 									if (theme_cache.outline_size > 0 && theme_cache.outline_color.a > 0) {
@@ -2880,7 +2881,8 @@ void TextEdit::_update_placeholder() {
 		placeholder_data_buf->set_direction((TextServer::Direction)text_direction);
 	}
 	placeholder_data_buf->set_preserve_control(draw_control_chars);
-	placeholder_data_buf->add_string(placeholder_translated, theme_cache.font, theme_cache.font_size, language);
+	const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+	placeholder_data_buf->add_string(placeholder_translated, theme_cache.font, theme_cache.font_size, lang);
 
 	placeholder_bidi_override = structured_text_parser(st_parser, st_args, placeholder_translated);
 	if (placeholder_bidi_override.is_empty()) {
@@ -2934,7 +2936,8 @@ void TextEdit::_update_caches() {
 	} else {
 		dir = (TextServer::Direction)text_direction;
 	}
-	text.set_direction_and_language(dir, (!language.is_empty()) ? language : TranslationServer::get_singleton()->get_tool_locale());
+	const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+	text.set_direction_and_language(dir, lang);
 	text.set_draw_control_chars(draw_control_chars);
 	text.set_font(theme_cache.font);
 	text.set_font_size(theme_cache.font_size);
@@ -3226,7 +3229,8 @@ void TextEdit::set_text_direction(Control::TextDirection p_text_direction) {
 		} else {
 			dir = (TextServer::Direction)text_direction;
 		}
-		text.set_direction_and_language(dir, (!language.is_empty()) ? language : TranslationServer::get_singleton()->get_tool_locale());
+		const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+		text.set_direction_and_language(dir, lang);
 		text.invalidate_font();
 		_update_placeholder();
 
@@ -3253,7 +3257,8 @@ void TextEdit::set_language(const String &p_language) {
 		} else {
 			dir = (TextServer::Direction)text_direction;
 		}
-		text.set_direction_and_language(dir, (!language.is_empty()) ? language : TranslationServer::get_singleton()->get_tool_locale());
+		const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+		text.set_direction_and_language(dir, lang);
 		text.invalidate_all();
 		_update_placeholder();
 		queue_redraw();
diff --git a/scene/gui/tree.cpp b/scene/gui/tree.cpp
index aab6f672f0e3..34c0afcfac1c 100644
--- a/scene/gui/tree.cpp
+++ b/scene/gui/tree.cpp
@@ -35,6 +35,7 @@
 #include "core/math/math_funcs.h"
 #include "core/os/keyboard.h"
 #include "core/os/os.h"
+#include "core/string/translation_server.h"
 #include "scene/gui/box_container.h"
 #include "scene/gui/text_edit.h"
 #include "scene/main/window.h"
@@ -2101,7 +2102,8 @@ void Tree::update_item_cell(TreeItem *p_item, int p_col) {
 	} else {
 		font_size = theme_cache.font_size;
 	}
-	p_item->cells.write[p_col].text_buf->add_string(valtext, font, font_size, p_item->cells[p_col].language);
+	const String &lang = p_item->cells[p_col].language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : p_item->cells[p_col].language;
+	p_item->cells.write[p_col].text_buf->add_string(valtext, font, font_size, lang);
 
 	BitField<TextServer::LineBreakFlag> break_flags = TextServer::BREAK_MANDATORY | TextServer::BREAK_TRIM_EDGE_SPACES;
 	switch (p_item->cells.write[p_col].autowrap_mode) {
diff --git a/scene/resources/3d/primitive_meshes.cpp b/scene/resources/3d/primitive_meshes.cpp
index ceeb73d0ef2c..4f3de1ee4cc4 100644
--- a/scene/resources/3d/primitive_meshes.cpp
+++ b/scene/resources/3d/primitive_meshes.cpp
@@ -31,6 +31,7 @@
 #include "primitive_meshes.h"
 
 #include "core/config/project_settings.h"
+#include "core/string/translation_server.h"
 #include "scene/resources/theme.h"
 #include "scene/theme/theme_db.h"
 #include "servers/rendering_server.h"
@@ -2917,8 +2918,9 @@ void TextMesh::_create_mesh_array(Array &p_arr) const {
 		TS->shaped_text_clear(text_rid);
 		TS->shaped_text_set_direction(text_rid, text_direction);
 
-		String txt = (uppercase) ? TS->string_to_upper(xl_text, language) : xl_text;
-		TS->shaped_text_add_string(text_rid, txt, font->get_rids(), font_size, font->get_opentype_features(), language);
+		const String &lang = language.is_empty() ? TranslationServer::get_singleton()->get_or_add_domain(get_translation_domain())->get_locale() : language;
+		String txt = (uppercase) ? TS->string_to_upper(xl_text, lang) : xl_text;
+		TS->shaped_text_add_string(text_rid, txt, font->get_rids(), font_size, font->get_opentype_features(), lang);
 
 		TypedArray<Vector3i> stt;
 		if (st_parser == TextServer::STRUCTURED_TEXT_CUSTOM) {