| 1824 | A New Dictionary of Kanji Usage |
| 4894 | Classic Nelson (Andrew Nelson) |
| 2652 | Japanese Names (P.G. O’Neill) |
| 915 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 2203 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1565 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 40654 | Morohashi |
| 1753 | New Japanese English Character Dictionary (Jack Halpern) |
| 6317 | New Nelson (John Haig) |
| 2761 | Remembering The Kanji (James Heisig) |
| 418 | Remembering The Kanji, 6th edition (James Heisig) |
Stroke order
On reading compounds
- 鍵 【ケン】 key (on a piano, organ, etc.)
- 鍵盤 【ケンバン】 keyboard (of a piano, typewriter, etc.)
- 打鍵 【ダケン】 keystroke
- 黒鍵 【コッケン】 black key (on a piano, organ, etc.)
Kun reading compounds
- 鍵 【かぎ】 key, lock, key (to a problem, success, etc.), clue
- 鍵垢 【かぎアカ】 private account (on social media, esp. Twitter), account that can only be viewed by approved followers
- 公開鍵 【こうかいかぎ】 public key
- 暗号鍵 【あんごうかぎ】 cryptographic key, encryption key
Readings
- Korean:
- geon
Spanish
- llave
- tecla (piano
- órgano
- etc.)
Portuguese
French
| 8a8.18 | The Kanji Dictionary |
| 1-8-9 | SKIP code |
| 1-8-8 | SKIP code |
| 8514.0 | Four corner code |
| 1-24-16 | JIS X 0208-1997 kuten code |
| 9375 | Unicode hex code |