| 1802 | A New Dictionary of Kanji Usage |
| 3046 | Classic Nelson (Andrew Nelson) |
| 22167 | Morohashi |
| 3804 | New Nelson (John Haig) |
| 2575 | Remembering The Kanji (James Heisig) |
| 2625 | Remembering The Kanji, 6th edition (James Heisig) |
Stroke order
On reading compounds
- 痔 【ジ】 hemorrhoids, piles
- 痔 【ジ】 hemorrhoids, piles
- 痔核 【ジカク】 hemorrhoid
- 吮癰舐痔 【センヨウシジ】 currying favour (favor), brown-nosing, bootlicking, sucking pus from carbuncles and licking hemorrhoids (haemorrhoids)
- いぼ痔 【イボジ】 hemorrhoids, haemorrhoids, blind piles
Readings
- Korean:
- chi
Spanish
Portuguese
French
| 548 | 2001 Kanji |
| 5i6.4 | The Kanji Dictionary |
| 3-5-6 | SKIP code |
| 0014.1 | Four corner code |
| 1-28-06 | JIS X 0208-1997 kuten code |
| 75d4 | Unicode hex code |
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
| 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) |
| 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 |