腹 means stomach, belly and is a JLPT N3 kanji. It has 13 strokes and uses the moon / body radical (月).
Stroke order · 13 strokes
On'yomi (音読み)
フク
Kun'yomi (訓読み)
はら
Radical
月 · moon / body
Strokes
13
How to remember 腹
The part of the body (月) that must be filled again and again — the stomach. 腹が立つ (to get angry) — for Japanese people, anger settles in the stomach, not the head; the language says so itself.