完 means complete, finished and is a JLPT N3 kanji. It has 7 strokes and uses the roof radical (宀).
Stroke order · 7 strokes
On'yomi (音読み)
カン
Kun'yomi (訓読み)
—
Radical
宀 · roof
Strokes
7
How to remember 完
Under a roof (宀), the foundation (元) has settled — the house's construction is finished. 完成 (completion), 完璧 (flawless) — the kanji of the satisfaction of finishing a job.