Definition of hear verb from the Oxford Advanced Learner's Dictionary

Oxford3000

hear

verb
hɪə(r)
 
; hɪr
 
heard, heard
hɜːd
 
; hɜːrd
 
 
1 [intransitive, transitive] (not used in the progressive tenses) to be aware of sounds with your earsI can't hear very well.hear something/somebody She heard footsteps behind her.I couldn't hear anything.hear somebody/something doing something He could hear a dog barking.hear somebody/something do something Did you hear him go out?I heard a car drive off.hear what… Didn't you hear what I said?somebody/something is heard to do something She has been heard to make threats to her former lover.2 [transitive] (not used in the progressive tenses) to listen or pay attention to somebody/somethinghear something Did you hear that play on the radio last night?a chance to hear the first movement againto hear both sides of the argumenthear somebody/something/yourself do something Be quiet— I can't hear myself think! (= it is so noisy that I can't think clearly)Have you ever heard him lecture?hear what… We'd better hear what they have to say.I hear what you're saying(= I have listened to your opinion), but you're wrong.3 [intransitive, transitive] (not usually used in the progressive tenses) to be told about somethingHaven't you heard? She resigned.‘I'm getting married.’ ‘So I've heard.’Things are going well from what I hear.hear about somebody/something I was sorry to hear about your accident.Wait till he hears about this.I've heard about people like you.hear something We had heard nothing for weeks.I was delighted to hear your good news.hear (that)… I was surprised to hear (that) he was married.I hear you've been away this weekend.hear it said (that)… I've heard it said (that) they met in Italy.hear what, how, etc… Did you hear what happened?4 [transitive] hear something to listen to and judge a case in courtThe appeal was heard in private.Today the jury began to hear the evidence.
Idioms

have you heard the one about…?

used to ask somebody if they have heard a particular joke before

hear! hear!

used to show that you agree with or approve of what somebody has just said, especially during a speech

hear tell (of something)

(old-fashioned or formal) to hear people talking about somethingI've often heard tell of such things.

I've heard it all before

(informal) used to say that you do not really believe somebody's promises or excuses because they are the same ones you have heard before

let's hear it for…

(informal) used to say that somebody/something deserves praiseLet's hear it for the teachers, for a change.

not/never hear the end of it

to keep being reminded of something because somebody is always talking to you about it
If we don't get her a dog we'll never hear the end of it.

you could hear a pin drop

it was extremely quiet
The audience was so quiet you could have heard a pin drop.

(do) you hear (me)?

(informal) used to tell somebody in an angry way to pay attention and obey youYou can't go—do you hear me?
more at hear/see the last of somebody/something at last n., the last I heard at last n., seeing/hearing things at thing, make your voice heard at voice n.
Phrasal verbs

hear from somebody

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hear something from somebody

to receive a letter, email, phone call, etc. from somebodyI look forward to hearing from you.I haven't heard anything from her for months.It was good to hear from him again.

hear of somebody/something

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hear something of somebody/something

to know about somebody/something because you have been told about themI've never heard of the place.I was so sorry to hear of your father's death.She disappeared and was never heard of again.The last I heard of him he was living in Glasgow.This is the first I've heard of it!

not hear of something

to refuse to let somebody do something, especially because you want to help themShe wanted to walk home but I wouldn't hear of it.not hear of somebody doing something He wouldn't hear of my walking home alone see also unheard-of

hear somebody out

to listen until somebody has finished saying what they want to sayI know you're furious with me, but please hear me out.