n(1)便(软)帽(soft flat hat often with a peak，usu worn by men and boys)[C]：a schoolboy's/school～学生帽;wear a flat/pleated～on one's head头上戴着一顶鸭舌帽/多折帽;

(2)帽子(any close-fitting soft head-covering not with a peak，worn for various purposes)[C](尤见于合成词)：a bathing-/shower-～游泳帽/淋浴帽;a baseball/swimming/cloth/nurse's/sailor's～垒球帽/游泳帽/布帽/护士帽/水手帽;the white～of a nurse 白色护士帽;

(3)荣誉帽(cap given officially as a sign of honour or rank)[C]：He's won three～s (for playing hockey) for England.他代表英国比赛(曲棍球)而得到三顶荣誉帽。

(4)帽状物，盖子(small，circular，tight-fitting cover for a pen，bottle，camera lens，etc)[C]：a bottle/radiator～瓶盖/冷却器塞;put the～off/back on a bottle启开/盖上瓶盖;replace the～after finishing with the pen用完钢笔后把笔帽套上;〖同〗lid，seal;

(5)天然帽状物(natural covering shaped like a cap)[C]：the polar ice-～极地冰帽;a～of hard rock硬石层;

v(1)复盖(cover the end or top of)[T+n]：Clouds/Snow～ped the mountain.云/雪罩住了山顶。(mountains)～ped with snow/mist (山)被雪遮盖/雾笼罩住;～a bottle盖上瓶子;The bottle was～ped with silver foil.瓶子口上盖着银箔。

(2)超过(do better than;surpass)[T+n]：Each joke～ped the one before.每一个笑话都比前一个更好。He～ped his friend's joke with an even funnier/more exciting one. 他讲的笑话比他朋友讲的更有趣/更令人兴奋。〖同〗better，exceed;

(3)授予荣誉帽(award a cap to (sb) as a sign of honour or rank)[T+n]：He was～ped three times (for playing hockey/football) for England. 他代表英国比赛(曲棍球/足球)三次获荣誉帽。

cap it all 更糟糕的是：He was miserable enough before，but to～it all he's lost his job.他以前就够惨的了，可现在更糟糕，连工作都丢了。