忘 means to forget and is a JLPT N3 kanji. It has 7 strokes and uses the heart/mind radical (心).
Stroke order · 7 strokes
On'yomi (音読み)
ボウ
Kun'yomi (訓読み)
わす(れる)
Radical
心 · heart/mind
Strokes
7
How to remember 忘
Vanishing (亡) from the heart/mind (心) — the death of memory is forgetting. 忘れ物 (a forgotten item) — you'll learn this kanji after leaving an umbrella on a Japanese train.