核hé
core, kernel; nut, seed; atom. 10 strokes, radical 木, first met in HSK 5.
How to write 核
Strokes 1–4 write 木, then strokes 5–10 write 亥.
Free, with no account: the app draws each stroke, then you write it and it says which stroke went wrong.
Print a 米字格 practice sheet for 核 · the stroke-order rules
What 核 is made of
木 (mù, tree) and 亥 (hài, 12th terrestrial branch).
木 carries the meaning — tree — and 亥 carries the sound.
Words that use 核
| 考核 | to assess, examine, evaluate 指通过检查测评判定水平高低 选手通过层层考核选拔厨艺新人。New culinary talent was chosen through round after round of evaluation. Lesson 447, 严谨察度 · 文武兼修与科学攻坚 · Cultural Elegance & Scientific Frontiers |
| 核心 | core, center 指事物最重要的部分 团队以创新为核心，共建和谐环境。The team made innovation its core. Lesson 590, 和衷共济 · 笃行和济与乾坤安澜 · Harmony, Core Vigor & Natural Resilience |
Characters that share the sound part 亥
Written with the same phonetic, so their readings tend to rhyme with each other.
More characters with the radical 木
All 67 of them, and what the radical means, on the 木 radical page.