bun·ion
noun/ˈbʌnjən/
/ˈbʌnjən/
- a painful swelling (= an area that is larger and rounder than normal) on the foot, usually on the big toe
脚部的肿块；（通常指）拇囊炎 Word Originearly 18th cent.: ultimately from Old French buignon, from buigne ‘bump on the head’.