怒 means anger and is a JLPT N3 kanji. It has 9 strokes and uses the heart radical (心).
Stroke order · 9 strokes
On'yomi (音読み)
ド、ヌ
Kun'yomi (訓読み)
いか(る)、おこ(る)
Radical
心 · heart
Strokes
9
How to remember 怒
A slave's (奴) heart (心) — resentment built up over generations. 怒る means to get angry; in Japan people rarely shout in anger, silence itself is the storm.