| 210 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 126 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 277 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 122 | A New Dictionary of Kanji Usage |
| 579 | Classic Nelson (Andrew Nelson) |
| 219 | Essential Kanji (P.G. O’Neill) |
| 341 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 156 | Japanese Names (P.G. O’Neill) |
| 126 | Kanji and Kana (Spahn and Hadamitzky) |
| 126 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 323 | Kanji in Context (Nishiguchi and Kono) |
| 152 | Kodansha Compact Kanji Guide |
| 2468 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1249 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1715 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 792 | Les Kanjis dans la tete (Yves Maniette) |
| 1452 | Morohashi |
| 1974 | New Japanese English Character Dictionary (Jack Halpern) |
| 372 | New Nelson (John Haig) |
| 784 | Remembering The Kanji (James Heisig) |
| 847 | Remembering The Kanji, 6th edition (James Heisig) |
| 212 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 92 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 2
JLPT level N4
118 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 公 【コウ】 public affair, government matter, the state, the government, the public, duke, prince, Sir, Lord, familiar or derogatory suffix
- 公安 【コウアン】 public safety, public welfare
- 大公 【タイコウ】 archduke
- 乃公 【ダイコウ】 I, me
- 公家 【クゲ】 court noble, nobility, kuge, Imperial Court
- 公廨 【クガイ】 government office
- 夙 【シュク】 outcasts common around the Kyoto region from the Kamakura period to the Edo period
Kun reading compounds
- 公 【おおやけ】 official, governmental, formal, public (use, matter, forum, etc.), common, being public knowledge, being out in the open, exposure to public view
- 公所 【おおやけどころ】 imperial court, government office, imperial land, government land
Readings
- Japanese names:
- あきら、 き、 きみ、 きん、 たか、 ただし、 とも、 ひろ、 まさ
- Korean:
- gong
Spanish
- público
- imparcial
- oficial
Portuguese
- público
- príncipe
- oficial
- governamental
French
- public
- prince
- officiel
- gouvernemental
| 2071 | 2001 Kanji |
| 2o2.2 | The Kanji Dictionary |
| 2-2-2 | SKIP code |
| 8073.0 | Four corner code |
| 8073.2 | Four corner code |
| 1-24-88 | JIS X 0208-1997 kuten code |
| 516c | 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 |