還 means to return and is a JLPT N1 kanji. It has 16 strokes and uses the movement / road radical (⻌).
Stroke order · 16 strokes
On'yomi (音読み)
カン
Kun'yomi (訓読み)
かえ(る)
Radical
⻌ · movement / road
Strokes
16
How to remember 還
Going around the road (⻌) back to the start — a return. 還暦 means 60 years old; a full turn of the zodiac cycle back to the beginning — the red-cap birthday!