月 means moon; month and is a JLPT N5 kanji. It has 4 strokes and uses the moon / body radical (月).
Stroke order · 4 strokes
On'yomi (音読み)
ゲツ、ガツ
Kun'yomi (訓読み)
つき
Radical
月 · moon / body
Strokes
4
How to remember 月
A thin crescent moon with two marks inside — the moon's craters. One full cycle of the moon makes a month, so this kanji also means 'month'. 月曜日 (Monday) = 'day of the moon'.