侵 means to invade and is a JLPT N1 kanji. It has 9 strokes and uses the person (side) radical (亻).
Stroke order · 9 strokes
On'yomi (音読み)
シン
Kun'yomi (訓読み)
おか(す)
Radical
亻 · person (side)
Strokes
9
How to remember 侵
A person (亻) with a broom in hand, encroaching bit by bit onto another's land — seizure. 侵入 appears in 不法侵入 meaning trespassing; common in news and on signboards.