/bʌn; bʌn/ n 1 small round sweet cake 小而圆的甜面包或点心: a currant bun 带葡萄乾的小圆面包. Cf 参看 roll1 2. 2 (esp woman's) hair twisted into a tight knot at the back of the head （尤指女子的）发髻: put, wear one's hair in a bun 把头发盘成发髻. 3 (idm 习语) have a `bun in the oven (infml joc 口, 谑) be pregnant 怀孕.