diff --git a/packages/localize/src/tools/src/extract/translation_files/arb_translation_serializer.ts b/packages/localize/src/tools/src/extract/translation_files/arb_translation_serializer.ts
index c0b6d314d3..1a5d79a400 100644
--- a/packages/localize/src/tools/src/extract/translation_files/arb_translation_serializer.ts
+++ b/packages/localize/src/tools/src/extract/translation_files/arb_translation_serializer.ts
@@ -50,7 +50,8 @@ export class ArbTranslationSerializer implements TranslationSerializer {
       const id = getMessageId(message);
       output += this.serializeMessage(id, message);
       output += this.serializeMeta(
-          id, message.description, duplicateMessages.filter(hasLocation).map(m => m.location));
+          id, message.description, message.meaning,
+          duplicateMessages.filter(hasLocation).map(m => m.location));
     }
 
     output += '\n}';
@@ -62,14 +63,19 @@ export class ArbTranslationSerializer implements TranslationSerializer {
     return `,\n  ${JSON.stringify(id)}: ${JSON.stringify(message.text)}`;
   }
 
-  private serializeMeta(id: string, description: string|undefined, locations: ɵSourceLocation[]):
-      string {
+  private serializeMeta(
+      id: string, description: string|undefined, meaning: string|undefined,
+      locations: ɵSourceLocation[]): string {
     const meta: string[] = [];
 
     if (description) {
       meta.push(`\n    "description": ${JSON.stringify(description)}`);
     }
 
+    if (meaning) {
+      meta.push(`\n    "x-meaning": ${JSON.stringify(meaning)}`);
+    }
+
     if (locations.length > 0) {
       let locationStr = `\n    "x-locations": [`;
       for (let i = 0; i < locations.length; i++) {
diff --git a/packages/localize/src/tools/test/extract/translation_files/arb_translation_serializer_spec.ts b/packages/localize/src/tools/test/extract/translation_files/arb_translation_serializer_spec.ts
index e93925dffa..f2c7103a8a 100644
--- a/packages/localize/src/tools/test/extract/translation_files/arb_translation_serializer_spec.ts
+++ b/packages/localize/src/tools/test/extract/translation_files/arb_translation_serializer_spec.ts
@@ -64,7 +64,8 @@ runInEachFileSystem(() => {
           '  "13579": "{$START_BOLD_TEXT}b{$CLOSE_BOLD_TEXT}",',
           '  "24680": "a",',
           '  "@24680": {',
-          '    "description": "and description"',
+          '    "description": "and description",',
+          '    "x-meaning": "meaning"',
           '  },',
           '  "80808": "multi\\nlines",',
           '  "90000": "<escape{$double-quotes-\\"}me>",',
@@ -72,6 +73,7 @@ runInEachFileSystem(() => {
           '  "100001": "{VAR_PLURAL, plural, one {{START_BOLD_TEXT}something bold{CLOSE_BOLD_TEXT}} other {pre {START_TAG_SPAN}middle{CLOSE_TAG_SPAN} post}}",',
           '  "12345": "a{$PH}b{$PH_1}c",',
           '  "@12345": {',
+          '    "x-meaning": "some meaning",',
           '    "x-locations": [',
           '      {',
           '        "file": "file.ts",',