杯
bēi · HSK 1
cup
🥤 杯 = 木 (wood) + 不 (phonetic ~bù → bēi); a wooden cup
Classifier and noun for cup-shaped containers: 一杯水 = one cup of water. The 木 radical points to early wooden vessels; 不 carries the sound. Also used for trophies (奖杯).
杯 — wood radical 木 + 不 (phonetic)
杯 is a semantic-phonetic compound. The 木 radical signals wood, since ancient cups were carved from wood, while 不 hints at the sound. Originally written 桮, it came to mean any cup or glass regardless of material.