bun noun
1 small round cake
ADJ. fresh | stale | cinnamon, cream, currant, hot cross, iced, sticky | hamburger
VERB + BUN eat, have | bake, make > Special page at FOOD
2 hair fastened in a round shape
ADJ. neat, severe, tight | loose
PREP. in a ~ a woman with her hair in a loose bun
PHRASES pull/draw your hair back in(to) a bun Her black hair was drawn back into a neat bun. | tie your hair (back) in a bun, wear your hair in a bun
You can also check other dicts: bun (English, 中文解释 ), wordnet sense, Collins Definition