| 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 2
JLPT level N4
157 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 心 【シン】 heart, mind, spirit, vitality, inner strength, bottom of one's heart, core (of one's character), nature, centre, center, core, heart, heart (organ), Chinese "Heart" constellation (one of the 28 mansions), friend
- 心から 【ココロカラ】 from the bottom of one's heart, heartily, sincerely
- 重心 【ジュウシン】 centre of gravity (center), centroid, barycenter, (one's) balance
- 会心 【カイシン】 congeniality, satisfaction, gratification
Kun reading compounds
- 心 【こころ】 mind, heart, spirit, the meaning of a phrase (riddle, etc.)
- 心意気 【こころいき】 spirit, determination, pluck, mettle
- 我が心 【わがこころ】 my heart
- 静心 【しずごころ】 calm mind, placid temperament
Readings
- Korean:
- sim
Spanish
- corazón
- centro
Portuguese
- coração
- mente
- espírito
French
- coeur
- esprit
- radical coeur (no. 61)
| 95 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 164 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 147 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 139 | A New Dictionary of Kanji Usage |
| 1645 | Classic Nelson (Andrew Nelson) |
| 80 | Essential Kanji (P.G. O’Neill) |
| 172 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 49 | Japanese Names (P.G. O’Neill) |
| 2.14 | Japanese for Busy People |
| 97 | Kanji and Kana (Spahn and Hadamitzky) |
| 97 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 172 | Kanji in Context (Nishiguchi and Kono) |
| 766 | Kodansha Compact Kanji Guide |
| 11 | Kodansha Kanji Dictionary (Jack Halpern) |
| 4 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 4 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 602 | Les Kanjis dans la tete (Yves Maniette) |
| 10295 | Morohashi |
| 11 | New Japanese English Character Dictionary (Jack Halpern) |
| 1780 | New Nelson (John Haig) |
| 595 | Remembering The Kanji (James Heisig) |
| 639 | Remembering The Kanji, 6th edition (James Heisig) |
| 64 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 96 | Tuttle Kanji Cards (Alexander Kask) |
| 358 | 2001 Kanji |
| 4k0.1 | The Kanji Dictionary |
| 1-1-3 | SKIP code |
| 4-4-4 | SKIP code |
| 3300.0 | Four corner code |
| 1-31-20 | JIS X 0208-1997 kuten code |
| 5fc3 | Unicode hex code |