杯 means cup, glass and is a JLPT N3 kanji. It has 8 strokes and uses the tree radical (木).
Stroke order · 8 strokes
On'yomi (音読み)
ハイ
Kun'yomi (訓読み)
さかずき
Radical
木 · tree
Strokes
8
How to remember 杯
A wooden (木) vessel not yet filled (不) — an empty glass waiting to be poured. 乾杯! (cheers!) is the nation's favorite word at parties. 一杯 means one cup.