bun

n.

1. 圆形的小面包或点心
   • I had a cup of tea and a bun at four o'clock.
     我在四点钟时喝了一杯茶, 吃了个小甜面包。
2. (女子的)圆发髻
   • She wears her hair in a bun.
     她把头发盘成一个髻。