| 359 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 458 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 435 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 294 | A New Dictionary of Kanji Usage |
| 1464 | Classic Nelson (Andrew Nelson) |
| 691 | Essential Kanji (P.G. O’Neill) |
| 584 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 379 | Japanese Names (P.G. O’Neill) |
| 514 | Kanji and Kana (Spahn and Hadamitzky) |
| 523 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 726 | Kanji in Context (Nishiguchi and Kono) |
| 933 | Kodansha Compact Kanji Guide |
| 287 | Kodansha Kanji Dictionary (Jack Halpern) |
| 180 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 216 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 534 | Les Kanjis dans la tete (Yves Maniette) |
| 13114 | Morohashi |
| 243 | New Japanese English Character Dictionary (Jack Halpern) |
| 2332 | New Nelson (John Haig) |
| 528 | Remembering The Kanji (James Heisig) |
| 567 | Remembering The Kanji, 6th edition (James Heisig) |
| 289 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 475 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 4
JLPT level N2
147 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 改 【カイ】 revision
- 改革 【カイカク】 reform, reformation, reorganization
- 更改 【コウカイ】 renewal, extension, revision
- 契約更改 【ケイヤクコウカイ】 contract renewal
Kun reading compounds
- 改める 【あらためる】 to change, to alter, to revise, to replace, to reform, to correct, to mend, to improve, to examine, to check, to inspect, to do properly, to do formally
- 改まる 【あらたまる】 to be renewed, to change, to be improved, to be reformed, to be revised, to be corrected, to stand on ceremony, to be formal, to take a turn for the worse (of an illness), to take a serious turn
Readings
- Korean:
- gae
Spanish
- reforma
- cambio
- investigación
- cambiar
- reformar
- renovar
- revisar
- investigar
Portuguese
- reforma
- mudança
- modificar
- umsertar
- renovar
- examinar
- inspecionar
- pesquisar
French
- réforme
- changer
- modifier
- améliorer
- renouveler
- examiner
- inspecter
- chercher
| 3566 | 2001 Kanji |
| 4i3.1 | The Kanji Dictionary |
| 1-3-4 | SKIP code |
| 1874.0 | Four corner code |
| 1-18-94 | JIS X 0208-1997 kuten code |
| 6539 | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N1
1765 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 暦 【コヨミ】 calendar, almanac
- 暦年 【レキネン】 calendar year, civil year, time, year after year
- 還暦 【カンレキ】 kanreki, one's 60th birthday (or 61st in the traditional age reckoning system) when one has lived through a full sexagenary cycle
- 改暦 【カイレキ】 calendar reform, adoption of a new calendar system, new calendar (for a new year), new year
- 暦応 【リャクオウ】 Ryakuō era (of the Northern Court; 1338.8.28-1342.4.27), Rekiō era
- 暦仁 【リャクニン】 Ryakunin era (1238.11.23-1239.2.7)
- 永暦 【エイリャク】 Eiryaku era (1160.1.10-1161.9.4)
- 康暦 【コウリャク】 Kōryaku era (of the Northern Court; 1379.3.22-1381.2.24)
Kun reading compounds
- 暦 【こよみ】 calendar, almanac
- 暦改正 【こよみかいせい】 calendar reform
Readings
- Korean:
- ryeog
Spanish
- calendario
- almanaque
Portuguese
- calendário
- almanaque
French
- calendrier
- almanach
| 1927 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1793 | A New Dictionary of Kanji Usage |
| 833 | Classic Nelson (Andrew Nelson) |
| 1383 | Essential Kanji (P.G. O’Neill) |
| 1411 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2235 | Japanese Names (P.G. O’Neill) |
| 1534 | Kanji and Kana (Spahn and Hadamitzky) |
| 1635 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1720 | Kanji in Context (Nishiguchi and Kono) |
| 980 | Kodansha Compact Kanji Guide |
| 3747 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1912 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2599 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 217 | Les Kanjis dans la tete (Yves Maniette) |
| 14111P | Morohashi |
| 3018 | New Japanese English Character Dictionary (Jack Halpern) |
| 2507 | New Nelson (John Haig) |
| 213 | Remembering The Kanji (James Heisig) |
| 226 | Remembering The Kanji, 6th edition (James Heisig) |
| 1707 | Tuttle Kanji Cards (Alexander Kask) |
| 3378 | 2001 Kanji |
| 2p12.3 | The Kanji Dictionary |
| 3-2-12 | SKIP code |
| 7126.9 | Four corner code |
| 1-46-81 | JIS X 0208-1997 kuten code |
| 66a6 | Unicode hex code |