| 788 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 706 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 679 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 360 | A New Dictionary of Kanji Usage |
| 35 | Classic Nelson (Andrew Nelson) |
| 543 | Essential Kanji (P.G. O’Neill) |
| 347 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 782 | Kanji and Kana (Spahn and Hadamitzky) |
| 796 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 992 | Kanji in Context (Nishiguchi and Kono) |
| 162 | Kodansha Compact Kanji Guide |
| 4332 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2192 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2950 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1832 | Les Kanjis dans la tete (Yves Maniette) |
| 1524 | Morohashi |
| 3519 | New Japanese English Character Dictionary (Jack Halpern) |
| 391 | New Nelson (John Haig) |
| 1815 | Remembering The Kanji (James Heisig) |
| 1956 | Remembering The Kanji, 6th edition (James Heisig) |
| 252 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 658 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 5
JLPT level N2
275 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 再 【サイ】 re-, again, repeated, deutero-, deuto-, deuter-
- 再演 【サイエン】 another showing (of a play), playing the same role again (i.e. of an actor), recapitulation
- 一再 【イッサイ】 once or twice, repeatedly
- 再 【サイ】 re-, again, repeated, deutero-, deuto-, deuter-
- 再演 【サイエン】 another showing (of a play), playing the same role again (i.e. of an actor), recapitulation
Kun reading compounds
- 再び 【ふたたび】 again, once more, a second time
- 再び取る 【ふたたびとる】 to reassume
Readings
- Japanese names:
- ふた
- Korean:
- jae
Spanish
- de nuevo
- otra vez
- re-
- repetidamente
Portuguese
- outra vez
- duas vezes
- segundo tempo
French
- encore une fois
- deux fois
- une deuxième fois
| 3147 | 2001 Kanji |
| 0a6.26 | The Kanji Dictionary |
| 4-6-1 | SKIP code |
| 1055.7 | Four corner code |
| 1044.7 | Four corner code |
| 1-26-38 | JIS X 0208-1997 kuten code |
| 518d | Unicode hex code |
Jōyō kanji, taught in grade 6
JLPT level N3
830 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 勤勉 【キンベン】 diligent, hard-working, industrious
- 勤続 【キンゾク】 continuous service
- 非常勤 【ヒジョウキン】 part-time work
- 常勤 【ジョウキン】 full-time employment
- 勤行 【ゴンギョウ】 religious service
- 勤行時報係 【ゴンギョウジホウガカリ】 muezzin
Kun reading compounds
- 勤める 【つとめる】 to work (for), to be employed (at), to serve (in), to serve (as), to act (as), to fill (the position of), to play the role (of), to conduct a religious service
- 務まる 【つとまる】 to be fit (for a role), to be qualified (for), to be equal (to a task), to be able to fulfill one's duties (as)
- 勤しむ 【いそしむ】 to work hard at, to devote oneself to, to be diligent in
Readings
- Korean:
- geun
Spanish
- tarea
- trabajo
- deber
- servicio diario
- servir
- desempeñar un cargo
- ser adecuado para
Portuguese
- diligência
- tornar-se empregado
- servir
French
- assiduité
- application
- travailler
- être employé
| 762 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 853 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 842 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 750 | A New Dictionary of Kanji Usage |
| 732 | Classic Nelson (Andrew Nelson) |
| 726 | Essential Kanji (P.G. O’Neill) |
| 376 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1698 | Japanese Names (P.G. O’Neill) |
| 3.10 | Japanese for Busy People |
| 559 | Kanji and Kana (Spahn and Hadamitzky) |
| 568 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 525 | Kanji in Context (Nishiguchi and Kono) |
| 223 | Kodansha Compact Kanji Guide |
| 2287 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1182 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1613 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1591 | Les Kanjis dans la tete (Yves Maniette) |
| 2415P | Morohashi |
| 1818 | New Japanese English Character Dictionary (Jack Halpern) |
| 552 | New Nelson (John Haig) |
| 1577 | Remembering The Kanji (James Heisig) |
| 1700 | Remembering The Kanji, 6th edition (James Heisig) |
| 941 | Tuttle Kanji Cards (Alexander Kask) |
| 1945 | 2001 Kanji |
| 2g10.1 | The Kanji Dictionary |
| 1-10-2 | SKIP code |
| 4412.7 | Four corner code |
| 1-22-48 | JIS X 0208-1997 kuten code |
| 52e4 | Unicode hex code |