核かく

1. 1stone (of a fruit) ; pit ; pip
2. 2core (of an organization, team, etc.) ; nucleus ; heart
3. 3nuclear weapons
4. 4nucleus (of an atom)
5. 5nucleus (of a cell)
6. 6condensation nucleus
7. 7(planetary) core
8. 8ring (in a cyclic compound)
9. 9kernel ; core
10. 10nucleus (of a cultured pearl)

JMdict entry 1205510 · frequency rank 2. Source and licence.