| 2-2-5, 3-4-3 | SKIP code |
| 2n5.1 | The Kanji Dictionary |
| 2722.7 | Four corner code |
| 2545 | deroo |
| 89d2 | Unicode hex code |
| 1-19-49 | JIS X 0208-1997 kuten code |
| 4301 | Classic Nelson (Andrew Nelson) |
| 5543 | New Nelson (John Haig) |
| 2047 | New Japanese-English Character Dictionary (Jack Halpern) |
| 2541 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1293 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1761 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1812 | Remembering The Kanji (James Heisig) |
| 1953 | Remembering The Kanji, 6th edition (James Heisig) |
| 714 | A New Dictionary of Kanji Usage |
| 547 | Japanese Names (P.G. O’Neill) |
| 273 | Essential Kanji (P.G. O’Neill) |
| 35003 | Morohashi |
| 243 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 473 | Kanji and Kana (Spahn and Hadamitzky) |
| 481 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 173 | sakade |
| 891 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 97 | henshall3 |
| 138 | Tuttle Kanji Cards (Alexander Kask) |
| 716 | Kanji in Context (Nishiguchi and Kono) |
| 1650 | Kodansha Compact Kanji Guide |
| 1829 | Les Kanjis dans la tête (Yves Maniette) |
| jiao3, jia3, jue2 | Pinyin reading |
| gag | Korean reading |
| n2 | JLPT level (KANJIDIC2) |
| 5 | WaniKani level |