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noun small round cake ADJ. fresh | stale | cinnamon, cream, currant, hot cross, iced, sticky | hamburger VERB + BUN eat, have | bake, makeFOOD 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
Oxford Collocations Dictionary