| 1195 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1153 | A New Dictionary of Kanji Usage |
| 1177 | Classic Nelson (Andrew Nelson) |
| 1132 | Essential Kanji (P.G. O’Neill) |
| 1179 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 980 | Japanese Names (P.G. O’Neill) |
| 565 | Kanji and Kana (Spahn and Hadamitzky) |
| 574 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 751 | Kanji in Context (Nishiguchi and Kono) |
| 417 | Kodansha Compact Kanji Guide |
| 3267 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1686 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2293 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1563 | Les Kanjis dans la tete (Yves Maniette) |
| 5917X | Morohashi |
| 2639 | New Japanese English Character Dictionary (Jack Halpern) |
| 1155 | New Nelson (John Haig) |
| 1549 | Remembering The Kanji (James Heisig) |
| 1669 | Remembering The Kanji, 6th edition (James Heisig) |
| 1242 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
898 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 契約 【ケイヤク】 contract, compact, agreement
- 契機 【ケイキ】 opportunity, chance, trigger, cause
- 幽契 【ユウケイ】 secret promise made to the gods
- 黙契 【モッケイ】 implicit agreement, tacit understanding
Kun reading compounds
- 契る 【ちぎる】 to pledge, to vow, to promise, to swear, to have sexual intercourse (esp. between husband and wife), to share a bed
Readings
- Korean:
- gye, geul
Spanish
- compromiso
- promesa
- voto
- prometer
- dar su palabra
Portuguese
- penhor
- promessa
- voto
French
- engagement
- promesse
- voeux
| 1463 | 2001 Kanji |
| 2f7.6 | The Kanji Dictionary |
| 2-6-3 | SKIP code |
| 5743.2 | Four corner code |
| 1-23-32 | JIS X 0208-1997 kuten code |
| 5951 | Unicode hex code |
Jōyō kanji, taught in grade 4
JLPT level N3
94 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 約 【ヤク】 approximately, about, promise, appointment, engagement, shortening, reduction, simplification, contraction (in phonetics)
- 約束 【ヤクソク】 promise, agreement, arrangement, one's word, contract, pact, appointment, engagement, date, convention, rule, destiny, fate
- 締約 【テイヤク】 conclusion of a treaty
- 成約 【セイヤク】 conclusion of a contract
Kun reading compounds
- 約まる 【つづまる】 to compress, to shrink
- 約める 【つづめる】 to abridge, to shorten, to economize
- 約やか 【つづまやか】 concise, brief, humble, frugal, modest, discrete
Readings
- Korean:
- yag, yo
Spanish
- promesa
- aproximadamente
- encogerse
- economizar
Portuguese
- promessa
- aproximadamente
- recuar
French
- environ
- promettre
- abréger
- raccourcir
| 726 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 621 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 591 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 137 | A New Dictionary of Kanji Usage |
| 3499 | Classic Nelson (Andrew Nelson) |
| 451 | Essential Kanji (P.G. O’Neill) |
| 808 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2.12 | Japanese for Busy People |
| 211 | Kanji and Kana (Spahn and Hadamitzky) |
| 211 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 381 | Kanji in Context (Nishiguchi and Kono) |
| 1516 | Kodansha Compact Kanji Guide |
| 1632 | Kodansha Kanji Dictionary (Jack Halpern) |
| 860 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1177 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1374 | Les Kanjis dans la tete (Yves Maniette) |
| 27242X | Morohashi |
| 1280 | New Japanese English Character Dictionary (Jack Halpern) |
| 4440 | New Nelson (John Haig) |
| 1362 | Remembering The Kanji (James Heisig) |
| 1462 | Remembering The Kanji, 6th edition (James Heisig) |
| 258 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 534 | Tuttle Kanji Cards (Alexander Kask) |
| 2752 | 2001 Kanji |
| 6a3.7 | The Kanji Dictionary |
| 1-6-3 | SKIP code |
| 2792.0 | Four corner code |
| 1-44-83 | JIS X 0208-1997 kuten code |
| 7d04 | Unicode hex code |