| 1074 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 577 | A New Dictionary of Kanji Usage |
| 2254 | Classic Nelson (Andrew Nelson) |
| 1608 | Essential Kanji (P.G. O’Neill) |
| 1430 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1212 | Kanji and Kana (Spahn and Hadamitzky) |
| 1275 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 986 | Kanji in Context (Nishiguchi and Kono) |
| 1089 | Kodansha Compact Kanji Guide |
| 1162 | Kodansha Kanji Dictionary (Jack Halpern) |
| 628 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 836 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1534 | Les Kanjis dans la tete (Yves Maniette) |
| 14743 | Morohashi |
| 927 | New Japanese English Character Dictionary (Jack Halpern) |
| 2660 | New Nelson (John Haig) |
| 1520 | Remembering The Kanji (James Heisig) |
| 1638 | Remembering The Kanji, 6th edition (James Heisig) |
| 1348 | Tuttle Kanji Cards (Alexander Kask) |
nucleus, core, kernel
- On:
- カク
Jōyō kanji, taught in junior high
JLPT level N1
475 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 核 【カク】 stone (of a fruit), pit, pip, core (of an organization, team, etc.), nucleus, heart, nuclear weapons, nucleus (of an atom), nucleus (of a cell), condensation nucleus, (planetary) core, ring (in a cyclic compound), kernel, core, nucleus (of a cultured pearl)
- 核家族 【カクカゾク】 nuclear family
- 中核 【チュウカク】 kernel, core, nucleus, center, centre
- 放射性同位核 【ホウシャセイドウイカク】 radioisotope
Readings
- Korean:
- haeg
Spanish
- semilla
- núcleo
- centro
- meollo
Portuguese
- núcleo
- centro
- cerne
French
- noyau
- nucléaire
- coeur
| 1862 | 2001 Kanji |
| 4a6.22 | The Kanji Dictionary |
| 1-4-6 | SKIP code |
| 4098.2 | Four corner code |
| 1-19-43 | JIS X 0208-1997 kuten code |
| 6838 | Unicode hex code |
Jōyō kanji, taught in grade 3
JLPT level N4
59 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 開花 【カイカ】 flowering, blooming, blossoming, coming into bloom, flowering (of a civilization, talent, etc.), blossoming, blooming, bearing fruit (of efforts)
- 開演 【カイエン】 curtain raising, starting (e.g. play, concert)
- 疎開 【ソカイ】 evacuation (to the country), spreading out (troops), deployment, dispersal
- 非公開 【ヒコウカイ】 private, non-public, secret, closed-door, closed
Kun reading compounds
- 開く 【ひらく】 to open, to undo, to unseal, to unpack, to bloom, to unfold, to spread out, to open (for business, e.g. in the morning), to be wide (gap, etc.), to widen, to hold (meeting, party, etc.), to give, to open, to found (nation, dynasty, sect, etc.), to open (a new business), to set up, to establish, to start, to open (ports, borders, etc.), to open (an account), to open up (new land, path, etc.), to clear, to develop, to open (a file, etc.), to extract (root), to reduce (equation), to cut open (fish), to change (kanji into hiragana), to flare (e.g. skirt), to slacken (into a poor posture)
- 開き 【ひらき】 opening, gap, dried and opened fish
- 開き直る 【ひらきなおる】 to become defiant, to fight back, to turn upon, to take the offensive
- 開ける 【ひらける】 to open out (of a view, scenery, etc.), to spread out, to become clear (of a road, visibility, etc.), to open up, to improve (of luck, prospects, etc.), to get better, to develop (of a town, civilization, etc.), to become civilized, to modernize, to grow, to advance (of knowledge, ideas, etc.), to be sensible, to be understanding, to be enlightened, to open (of a new road, railway, etc.), to be opened to traffic, to become populous, to become densely built, to become bustling
- 開く 【あく】 to open (e.g. doors), to open (e.g. business, etc.), to be empty, to be vacant, to be available, to be free, to be open (e.g. neckline, etc.), to have been opened (of one's eyes, mouth, etc.), to come to an end, to open (one's eyes, mouth, etc.), to have a hole, to form a gap, to have an interval (between events)
- 開ける 【あける】 to open (a door, etc.), to unwrap (e.g. parcel, package), to unlock, to open (for business, etc.), to empty, to remove, to make space, to make room, to move out, to clear out, to be away from (e.g. one's house), to leave (temporarily), to dawn, to grow light, to end (of a period, season), to begin (of the New Year), to leave (one's schedule) open, to make time (for), to make (a hole), to open up (a hole)
Readings
- Japanese names:
- はる、 か、 ひらき
- Korean:
- gae
Spanish
- abrir
- desdoblar
- dar comienzo
- abrirse
- estar abierto
Portuguese
- abrir
- desdobrar
- deslacrar
French
- ouvrir
- s'ouvrir
- briser le sceau
| 171 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 261 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 241 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 80 | A New Dictionary of Kanji Usage |
| 4950 | Classic Nelson (Andrew Nelson) |
| 550 | Essential Kanji (P.G. O’Neill) |
| 270 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1821 | Japanese Names (P.G. O’Neill) |
| 2.13 | Japanese for Busy People |
| 396 | Kanji and Kana (Spahn and Hadamitzky) |
| 400 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 215 | Kanji in Context (Nishiguchi and Kono) |
| 1840 | Kodansha Compact Kanji Guide |
| 4121 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2092 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2835 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1636 | Les Kanjis dans la tete (Yves Maniette) |
| 41233 | Morohashi |
| 3321 | New Japanese English Character Dictionary (Jack Halpern) |
| 6393 | New Nelson (John Haig) |
| 1622 | Remembering The Kanji (James Heisig) |
| 1750 | Remembering The Kanji, 6th edition (James Heisig) |
| 290 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 391 | Tuttle Kanji Cards (Alexander Kask) |
| 3855 | 2001 Kanji |
| 8e4.6 | The Kanji Dictionary |
| 3-8-4 | SKIP code |
| 7744.1 | Four corner code |
| 1-19-11 | JIS X 0208-1997 kuten code |
| 958b | Unicode hex code |
departure, discharge, publish, emit, start from, disclose, counter for gunshots
Jōyō kanji, taught in grade 3
JLPT level N4
32 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 発 【ハツ】 departure, departing from ..., leaving at (e.g. 8:30), sent from ..., (a letter, etc.) dated ..., datelined ..., counter for engines (on an aircraft), counter for gunshots, bursts of gas, etc., counter for bullets, bombs, etc., counter for blows (punches), counter for jokes, puns, etc., counter for ideas, thoughts or guesses, counter for ejaculations or sexual intercourse
- 発 【ハツ】 green dragon tile, winning hand with a pung (or kong) of green dragon tiles
- 偶発 【グウハツ】 sudden outbreak, accidental, incidental
- 電源開発 【デンゲンカイハツ】 development of electrical power resources
- 発熱 【ハツネツ】 generation of heat, (attack of) fever, pyrexia
- 発議 【ハツギ】 proposal, suggestion, motion, initiative
Kun reading compounds
- 発つ 【たつ】 to depart (on a journey, trip, etc.), to leave, to set off, to start
- 立つ鳥跡を濁さず 【たつとりあとをにごさず】 it is simply common courtesy to clean up after yourself, a bird does not foul the nest it is about to leave, on leaving a place, one should see that all is in good order
- 暴く 【あばく】 to disclose, to divulge, to expose, to open (a grave), to dig out
Readings
- Japanese names:
- ば、 わ
- Korean:
- bal
Spanish
- abrir
- exponer
- suceder
Portuguese
- liberar
- partida
- publicar
- emitir
- a partir de
- revelar
French
- départ
- décharge
- dégagement
- publier
- émettre
- partir de
- divulguer
- compteur de coups de feu
| 303 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 392 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 370 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 43 | A New Dictionary of Kanji Usage |
| 3092 | Classic Nelson (Andrew Nelson) |
| 186 | Essential Kanji (P.G. O’Neill) |
| 225 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 953 | Japanese Names (P.G. O’Neill) |
| 2.7 | Japanese for Busy People |
| 96 | Kanji and Kana (Spahn and Hadamitzky) |
| 96 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 286 | Kanji in Context (Nishiguchi and Kono) |
| 1360 | Kodansha Compact Kanji Guide |
| 3174 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1634 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2222 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1721 | Les Kanjis dans la tete (Yves Maniette) |
| 22662P | Morohashi |
| 2565 | New Japanese English Character Dictionary (Jack Halpern) |
| 3860 | New Nelson (John Haig) |
| 1705 | Remembering The Kanji (James Heisig) |
| 1840 | Remembering The Kanji, 6th edition (James Heisig) |
| 102 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 342 | Tuttle Kanji Cards (Alexander Kask) |
| 3557 | 2001 Kanji |
| 0a9.5 | The Kanji Dictionary |
| 2-5-4 | SKIP code |
| 1241.5 | Four corner code |
| 1-40-15 | JIS X 0208-1997 kuten code |
| 767a | Unicode hex code |