| English | Japanese |
| n kanji printed as ruby, usually to explain kana | 振り漢字 |
| ruby character | ルビ gai1 esp. ルビー |
| ruby character | ルビー gai1 (rubī) |
| n ruby glass | ルビー・ガラス |
| n ruby glass | ルビーガラス |
| n ruby silver ore | 紅銀鉱 (kōginkō) |
| n ruby snapper | アカマチ |
| n ruby snapper | あかまち |
| n uk ruby snapper | 浜鯛 |
| n uk ruby-throated hummingbird | 喉赤蜂鳥 (Archilochus colubris) |
| n ruby wedding | ルビー婚式 (anniversary) |
| write ruby characters | ルビを振る (small furigana above or beside kanji) |