| Source | Target | | 1 パス エンコード | one-pass encoding |
| 1 問対話テンプレート | one-level interactive template |
| Mac 向け OneDrive | OneDrive for Mac |
| MAHJONG TILE ONE OF CHARACTERS | MAHJONG TILE ONE OF CHARACTERS |
| Microsoft Office OneNote の開始 | Start Microsoft Office OneNote |
| Microsoft OneDrive | Microsoft OneDrive |
| Microsoft OneDrive for Business | Microsoft OneDrive for Business |
| Microsoft OneNote 2010 | Microsoft OneNote 2010 |
| Microsoft OneNote Home and Student 2010 | Microsoft OneNote Home and Student 2010 |
| Microsoft OneNote Mobile 2010 | Microsoft OneNote Mobile 2010 |
| Microsoft® Office OneNote® 2007 | Microsoft® Office OneNote® 2007 |
| Microsoft® Office OneNote® Mobile | Microsoft® Office OneNote® Mobile |
| OneDrive | OneDrive |
| OneDrive for Business | OneDrive for Business |
| OneDrive カメラ ロール | OneDrive camera roll |
| OneDrive.com | OneDrive.com |
| OneNote オンライン ビューアー | OneNote Online Viewer |
| OneNote 共有 | OneNote share |
| OneWayToSource バインディング | one way to source binding |
| OneX | OneX |
| OnExit イベント | OnExit event |
| RADIUS ワンタイム パスワード | RADIUS One-Time Password |
| Windows Live OneCare | Windows Live OneCare |
| Windows Live OneCare Advisor | Windows Live OneCare Advisor |
| Windows Live OneCare for Server | Windows Live OneCare for Server |
| Windows Live OneCare PC セーフティ | Windows Live OneCare Safety Scanner |
| クリック 1 回で | with one click |
| プリペイド | One time |
| ワンクリック発行 | one-click publish |
| ワンクリック登録 | One-click Subscribe |
| ワンタイム バイパス | one-time bypass |
| ワンタイム パスワード | one-time password |
| 一対一リレーションシップ | one-to-one relationship |
| 一対多リレーションシップ | one-to-many relationship |
| 一方向のアグリーメント | one-way agreement |
| 一方向の信頼 | one-way trust |
| 一時アドレス | one-off address |
| 単一分析コード測定 | one-dimensional measurement |
