| 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 N2
1628 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 姓 【セイ】 surname, family name, hereditary title (used in ancient Japan to denote rank and political standing)
- 姓名 【セイメイ】 (full) name, family name and given name
- 旧姓 【キュウセイ】 one's original family name, maiden name
- 同姓 【ドウセイ】 same surname
- 姓 【セイ】 surname, family name, hereditary title (used in ancient Japan to denote rank and political standing)
- 俗姓 【ゾクショウ】 secular surname (of a priest)
- 小百姓 【コビャクショウ】 peasant, small farmer
Readings
- Korean:
- seong
Spanish
- apellido
Portuguese
- sobrenome
French
- nom de famille
| 1471 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1766 | A New Dictionary of Kanji Usage |
| 1203 | Classic Nelson (Andrew Nelson) |
| 1150 | Essential Kanji (P.G. O’Neill) |
| 450 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 846 | Japanese Names (P.G. O’Neill) |
| 1746 | Kanji and Kana (Spahn and Hadamitzky) |
| 1869 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 598 | Kanji in Context (Nishiguchi and Kono) |
| 440 | Kodansha Compact Kanji Guide |
| 334 | Kodansha Kanji Dictionary (Jack Halpern) |
| 209 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 251 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1571 | Les Kanjis dans la tete (Yves Maniette) |
| 6178 | Morohashi |
| 279 | New Japanese English Character Dictionary (Jack Halpern) |
| 1196 | New Nelson (John Haig) |
| 1557 | Remembering The Kanji (James Heisig) |
| 1678 | Remembering The Kanji, 6th edition (James Heisig) |
| 1163 | Tuttle Kanji Cards (Alexander Kask) |
| 1772 | 2001 Kanji |
| 3e5.3 | The Kanji Dictionary |
| 1-3-5 | SKIP code |
| 4541.0 | Four corner code |
| 1-32-11 | JIS X 0208-1997 kuten code |
| 59d3 | Unicode hex code |