杯 one cup of liquid

木 (tree) + 不 (un)
★★★★☆
8 strokes
COUNTER

Onyomi

HAI

Would you like another cup of sake? HAI!

Mnemonic

Wood is UN-liquid. Wood is solid.

Jukugo

一杯(いっぱい)

one cup-full ★★★★☆ COUNTERKANA
一 (one) + 杯 (one cup of liquid) = 一杯 (one cup-full)

乾杯(かんぱい!)

Skoal! ★★★★☆
乾 (dessicate) + 杯 (one cup of liquid) = 乾杯 (Skoal!)

Cheers! Let's drink!

Lookalikes

Meaning Hint Radical
杯 one cup of liquid NOT 不
枚 counter for flat objects DIRECTOR

Liquid in cups is NOT made of trees (tree + not)
Paper is read by the DIRECTOR. (it's a script, fool!)