diff --git a/apps/client/src/translations/ja/translation.json b/apps/client/src/translations/ja/translation.json
index 3605b7bdf2..a1b25cd98c 100644
--- a/apps/client/src/translations/ja/translation.json
+++ b/apps/client/src/translations/ja/translation.json
@@ -2168,5 +2168,24 @@
   },
   "setup_form": {
     "more_info": "さらに詳しく"
+  },
+  "video": {
+    "play": "再生（スペース）",
+    "pause": "一時停止（スペース）",
+    "back-10s": "10秒戻る（左矢印キー）",
+    "forward-30s": "30秒進む",
+    "mute": "ミュート（M）",
+    "unmute": "ミュート解除（M）",
+    "playback-speed": "再生速度",
+    "loop": "ループ",
+    "disable-loop": "ループ解除",
+    "rotate": "回転",
+    "picture-in-picture": "ピクチャーインピクチャー",
+    "exit-picture-in-picture": "ピクチャーインピクチャーを終了",
+    "fullscreen": "全画面表示 (F)",
+    "exit-fullscreen": "全画面表示を終了",
+    "unsupported-format": "このファイル形式ではビデオプレビューは利用できません。",
+    "zoom-to-fit": "ズームして全画面表示",
+    "zoom-reset": "ズームを解除して全体表示"
   }
 }