hat
Longman Dictionary of Contemporary English 5++LDOCE 5++ldoce_149_ihat /hæt/ ●●● S1 W3 noun [countable] 1 DCCa piece of clothing that you wear on your head 帽子 Maria was wearing a beautiful new hat. 玛丽亚戴着一顶漂亮的新帽子。straw/cowboy/bowler etc hat 草帽/牛仔帽/常礼帽等in a hat a man in a fur hat 戴毛皮帽子的男人bowler-hatted/top-hatted etc (=wearing a bowler hat, top hat etc) 戴常礼帽的/戴高顶礼帽等的 a bowler-hatted gentleman 一位戴常礼帽的绅士2. keep something under your hat informalSECRET to keep something secret 对某事保密3 be wearing your teacher’s/salesman’s etc hat (also have your teacher’s/salesman’s etc hat on) informalWORK/DO WORK to be performing the duties of a teacher etc, which are not your only duties 干着老师/销售员等的工作〔指做不止一份工作〕 I’m a manager now and only put my salesman’s hat on when one of our sales reps is having real problems. 我现在当经理了,只有当我们的销售代表遇到真正的难题时我才做销售工作。4 I take my hat off to somebody (also hats off to somebody) informalADMIRE used to say you admire someone very much because of what they have done 我向某人致敬〔表示钦佩某人〕 I take my hat off to Ian – without him we’d have never finished this project on time. 我向伊恩致敬——没有他我们绝不可能准时完成这个项目。5 be drawn/pulled/picked out of the/a hat if someone’s name is drawn out of a hat, they are chosen, for example as the winner of a competition, because their name is the first one that is taken out of a container containing the names of all the people involved 随机抽出 The first correct entry out of the hat on September 2nd will win a prize. 9月2日第一个被抽中并且答案正确者将赢得奖品。6. pass the hat around GETto collect money from a group of people, especially in order to buy someone a present 〔尤指一群人为了给某人买礼物而〕凑钱7. throw/toss your hat into the ring to say publicly that you will compete in an election or for a job 正式宣布参加竞选[应聘] → hard hat, old hat, → at the drop of a hat at drop2(5), → I’ll eat my hat at eat(8), → hang up your hat at hang up, → be talking through your hat at talk1(29)
Examples from the Corpus
hat• In his Roos-Atkins collapsible hat and safari jacket, he might have stepped from the pages of Field and Stream.• a cowboy hat• Peasants in cowboy hats have replaced well-heeled tourists beside a pool now filled only with two inches of green scum.• a big straw hat• It created an odd effect, because, as he shook his head, he still fanned himself with his straw hat.• Some females were able to switch to the plaiting of straw hats, bonnets and mats.• She wore a large white straw hat and looked as if she'd just been to church.• Oliver swept off his battered top hat in ironic acknowledgement of her sally.in a hat• There were kids everywhere in heavy coats, girls carrying roller skates, posse boys in hats carrying sticks.• In the first called Ascot, Nielsen disguises himself cunningly in a hat that would have probably made Gertrude Shilling turn pale.• There was a lady in a hat, only one but quite a one.• A door opened and a man in a hat leaned out, one foot on the running board.• Women played in hats and long-sleeved day dresses.• He trudges along there on a Sunday, in hat, tie, dark suit.• Now he looked like a toad in hat and tails.• Haven't seen a woman in a hat for years.Origin hat Old English hæthat nounChinese
on Corpus you a clothing that wear piece of
hat
hat S1 W3 /hæt/
noun [countable]
1. a piece of clothing that you wear on your head:
Maria was wearing a beautiful new hat.
straw/cowboy/bowler etc hat
in a hat
a man in a fur hat
bowler-hatted/top-hatted etc (=wearing a bowler hat, top hat etc)
a bowler-hatted gentleman
2. keep something under your hat informal to keep something secret
3. be wearing your teacher’s/salesman’s etc hat (also have your teacher’s/salesman’s etc hat on) informal to be performing the duties of a teacher etc, which are not your only duties:
I’m a manager now and only put my salesman’s hat on when one of our sales reps is having real problems.
4. I take my hat off to somebody (also hats off to somebody) informal used to say you admire someone very much because of what they have done:
I take my hat off to Ian – without him we’d have never finished this project on time.
5. be drawn/pulled/picked out of the/a hat if someone’s name is drawn out of a hat, they are chosen, for example as the winner of a competition, because their name is the first one that is taken out of a container containing the names of all the people involved:
The first correct entry out of the hat on September 2nd will win a prize.
6. pass the hat around to collect money from a group of people, especially in order to buy someone a present
7. throw/toss your hat into the ring to say publicly that you will compete in an election or for a job
⇨ hard hat, old hat, ⇨ at the drop of a hat at drop2(5), ⇨ I’ll eat my hat at eat(8), ⇨ hang up your hat at hang up(3), ⇨ be talking through your hat at talk1(29)
hat S1 W3 /hæt/
noun [countable] Language: Old English
Origin: hæt
Origin: hæt

1. a piece of clothing that you wear on your head:
straw/cowboy/bowler etc hat
in a hat
bowler-hatted/top-hatted etc (=wearing a bowler hat, top hat etc)
2. keep something under your hat informal to keep something secret
3. be wearing your teacher’s/salesman’s etc hat (also have your teacher’s/salesman’s etc hat on) informal to be performing the duties of a teacher etc, which are not your only duties:
4. I take my hat off to somebody (also hats off to somebody) informal used to say you admire someone very much because of what they have done:
5. be drawn/pulled/picked out of the/a hat if someone’s name is drawn out of a hat, they are chosen, for example as the winner of a competition, because their name is the first one that is taken out of a container containing the names of all the people involved:
6. pass the hat around to collect money from a group of people, especially in order to buy someone a present
7. throw/toss your hat into the ring to say publicly that you will compete in an election or for a job
⇨ hard hat, old hat, ⇨ at the drop of a hat at drop2(5), ⇨ I’ll eat my hat at eat(8), ⇨ hang up your hat at hang up(3), ⇨ be talking through your hat at talk1(29)

especially
both especially
usually