山 means mountain and is a JLPT N5 kanji. It has 3 strokes and uses the mountain radical (山).
Stroke order · 3 strokes
On'yomi (音読み)
サン、セン
Kun'yomi (訓読み)
やま
Radical
山 · mountain
Strokes
3
How to remember 山
Three peaks standing together, the middle one tallest — quite literally a picture of a mountain. Mount Fuji = 富士山. There aren't many kanji this honest, looking exactly like what they mean.