危 means “dangerous”

あぶない · abunai

Also: fear, uneasy

Kun'yomi (Japanese reading)
あぶない, あやうい, あやぶむ
On'yomi (Chinese reading)
キ

JLPT N3 · Taught in grade 6 · 6 strokes

The story

A figure (⺈) at the edge of a cliff (厂) while another crouches below, a curled form of 卩: danger from both sides. 危ない is shouted when a bike swerves too close, 危険 is the danger printed on warning signs, and 危機 is a crisis.

Used in 危ない (abunai, dangerous), 危険 (kiken, danger), and 危機 (kiki, crisis)

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.