| 2-2-13, 2-8-7 | SKIP code |
| 4i12.1 | The Kanji Dictionary |
| 1024.7, 1040.7 | Four corner code |
| 3167 | deroo |
| 6182 | Unicode hex code |
| 1-45-11 | JIS X 0208-1997 kuten code |
| 70 | Classic Nelson (Andrew Nelson) |
| 1971 | New Nelson (John Haig) |
| 2145 | New Japanese-English Character Dictionary (Jack Halpern) |
| 2664 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1357 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1842 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 616 | Remembering The Kanji (James Heisig) |
| 663 | Remembering The Kanji, 6th edition (James Heisig) |
| 1627 | A New Dictionary of Kanji Usage |
| 1518 | Essential Kanji (P.G. O’Neill) |
| 11170 | Morohashi |
| 1871 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1032 | Kanji and Kana (Spahn and Hadamitzky) |
| 1073 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1319 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1763 | Tuttle Kanji Cards (Alexander Kask) |
| 1829 | Kanji in Context (Nishiguchi and Kono) |
| 800 | Kodansha Compact Kanji Guide |
| 624 | Les Kanjis dans la tête (Yves Maniette) |
| you1 | Pinyin reading |
| u | Korean reading |
| n1 | JLPT level (KANJIDIC2) |
| 55 | WaniKani level |