亡 means to die; to lose and is a JLPT N3 kanji. It has 3 strokes and uses the cover / roof radical (亠).
Stroke order · 3 strokes
On'yomi (音読み)
ボウ、モウ
Kun'yomi (訓読み)
な(い)、ほろ(びる)
Radical
亠 · cover / roof
Strokes
3
How to remember 亡
A person has hidden behind a wall — no longer visible. Whatever is gone from sight forever is what's lost. The word carries weight, yet the kanji is just three strokes.