Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “OK”

OK

exclamation uk (also okay)   /ˌəʊˈkeɪ/ us    /ˌoʊ-/

OK exclamation (AGREEING)

A1 used to show that you agree with something or agree to do something: "I'll pay you back tomorrow." "OK, no problem." "Could you pick me up from the station?" "OK, what time?" I mean, OK (= I accept that), I wasn't exactly polite to him, but I don't think I was that rude!

OK exclamation (UNDERSTAND)

A2 used to check that someone understands something or that they agree to something: You need to add a bit more vinegar, OK? I'll see you at 6.30, okay?

OK exclamation (ACTION)

A2 informal used as a way of showing that you are going to take action or start something new: Okay, let's go. Okay then, if you're ready we'll start.

OK exclamation (PAUSE)

not standard used in the middle of a sentence as a way of pausing: We saw these guys, okay, so we went up to them and started talking.

OK

adjective uk (also okay)   /ˌəʊˈkeɪ/ us    /ˌoʊ-/ informal

OK adjective (AGREED)

A2 agreed or acceptable: Is it okay if I bring a friend to the party? If it's okay by/with you, I'll leave the shopping till tomorrow.

OK adjective (ACCEPTABLE)

A1 in a satisfactory state or of a satisfactory quality: How's Paula? Is she okay after her fall yesterday? Are you OK? You look a bit pale. "Is everything OK with you?" "Yes, fine." I'll just check that the car's okay - that was a bit of a bang!
Synonym
A2 not bad but certainly not good: "Did you have a good meal last night?" "It was okay, though I've certainly had better." Her voice is OK, but it's nothing special.

OK

OK

verb [T] uk (present tense OK's, present participle OK'ing, past tense and past participle OK'd) (also okay (present tense okays, present participle okaying, past tense and past participle okayed))   /ˌəʊˈkeɪ/ us    /ˌoʊ-/ informal
to agree to something: Have the committee OK'd your proposal?

OK

noun uk (also okay)   /ˌəʊˈkeɪ/ us    /ˌoʊ-/
the OK (also the okay) [S] permission: He's got the OK to go ahead with his project.
(Definition of OK from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of OK?
Add Cambridge dictionaries to your browser to your website

Definitions of “OK” in other dictionaries

Word of the Day

monster

any imaginary frightening creature, especially one that is large and strange

Word of the Day

What’s that lovely smell?

by Kate Woodford,
October 29, 2014
As adult humans, we can distinguish about 10,000 different smells. It’s no wonder, then, that we have so many words and expressions to describe them. This week we’re taking a look at those smell words – words that describe good smells and words that describe bad smells. Most smell words are either

Read More 

high-frequency trading noun

October 27, 2014
a type of stock market trading that uses very complex technology to trade extremely quickly, often making tiny profits which nevertheless add up to substantial sums Lewis’s book, Flash Boys, is driving a huge amount of attention toward the topic of high frequency trading, and it has rekindled some of

Read More