| 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 grade 5
JLPT level N1
603 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 修業 【シュウギョウ】 pursuit of knowledge, studying, learning, training, completing a course
- 修学旅行 【シュウガクリョコウ】 excursion, field trip, school trip
- 監修 【カンシュウ】 (editorial) supervision, general editorship, supervising director
- 改修 【カイシュウ】 repair, improvement
- 修業 【シュウギョウ】 pursuit of knowledge, studying, learning, training, completing a course
- 修学旅行 【シュウガクリョコウ】 excursion, field trip, school trip
- 逆修 【ギャクシュ】 holding a memorial service for oneself, an older person conducting a memorial service for a deceased, younger person
Kun reading compounds
- 修める 【おさめる】 to study, to complete (a course), to cultivate, to master, to order (one's life), to repair (a fault one has committed)
- 修まる 【おさまる】 to reform (oneself), to conduct oneself well
Readings
- Japanese names:
- おき、 なが、 のぶ、 おさむ
- Korean:
- su
Spanish
- disciplina
- reparación
- arreglo
- dominar
- controlar
- controlarse
Portuguese
- disciplina
- estudo
- mestre
French
- discipline
- bien se conduire
- étudier
- maîtriser
| 633 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 730 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 704 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 644 | A New Dictionary of Kanji Usage |
| 491 | Classic Nelson (Andrew Nelson) |
| 563 | Essential Kanji (P.G. O’Neill) |
| 321 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1038 | Japanese Names (P.G. O’Neill) |
| 945 | Kanji and Kana (Spahn and Hadamitzky) |
| 975 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1175 | Kanji in Context (Nishiguchi and Kono) |
| 107 | Kodansha Compact Kanji Guide |
| 138 | Kodansha Kanji Dictionary (Jack Halpern) |
| 92 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 105 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1738 | Les Kanjis dans la tete (Yves Maniette) |
| 721 | Morohashi |
| 123 | New Japanese English Character Dictionary (Jack Halpern) |
| 260 | New Nelson (John Haig) |
| 1722 | Remembering The Kanji (James Heisig) |
| 1858 | Remembering The Kanji, 6th edition (James Heisig) |
| 715 | Tuttle Kanji Cards (Alexander Kask) |
| 2160 | 2001 Kanji |
| 2a8.11 | The Kanji Dictionary |
| 1-2-8 | SKIP code |
| 1-3-7 | SKIP code |
| 2822.2 | Four corner code |
| 2722.2 | Four corner code |
| 1-29-04 | JIS X 0208-1997 kuten code |
| 4fee | Unicode hex code |