diff --git a/messages/en.json b/messages/en.json
index 37a98944..944356eb 100644
--- a/messages/en.json
+++ b/messages/en.json
@@ -1,4 +1,12 @@
 {
 	"$schema": "https://inlang.com/schema/inlang-message-format",
-	"hello_world": "Hello, {name} from en!"
+	"hello_world": "Hello, {name} from en!",
+
+	"nav_gallery": "Gallery",
+	"nav_collection": "Collection",
+	"nav_login": "Log in",
+	"nav_settings": "Settings",
+	"nav_logout": "Log out",
+	"nav_account_aria": "Your account",
+	"nav_menu_button": "Menu"
 }
diff --git a/messages/ja.json b/messages/ja.json
index 6a8a1ee5..cc91d426 100644
--- a/messages/ja.json
+++ b/messages/ja.json
@@ -1,4 +1,12 @@
 {
 	"$schema": "https://inlang.com/schema/inlang-message-format",
-	"hello_world": "Hello, {name} from ja!"
+	"hello_world": "Hello, {name} from ja!",
+
+	"nav_gallery": "ギャラリー",
+	"nav_collection": "コレクション",
+	"nav_login": "ログイン",
+	"nav_settings": "設定",
+	"nav_logout": "ログアウト",
+	"nav_account_aria": "アカウント",
+	"nav_menu_button": "メニュー"
 }