丶 (zhǔ) is Kangxi radical no. 3, “dot”. In this form it is written with 1 stroke.
As a radical, 丶 (zhǔ) is the part a dictionary files these characters under. Often it hints at the meaning - “dot” - but sometimes it is only a shape that the character happened to share.
The characters range from 3 to 9 strokes. 1 of them already appear in HSK 3.0 levels 1–2, and 2 have a full word page of their own.
Good ones to start with: 为 (wèi) for / for the sake of, 主 (zhǔ) to own.
← 丨 (gǔn) · All characters · 丿 (piě) →
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