Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “OK”

OK

exclamation, adjective [not gradable] (also okay)  /ˈoʊˈkeɪ, ˌoʊˈkeɪ, ˈoʊˌkeɪ/ us  

OK exclamation, adjective [not gradable] (AGREED)

agreed or acceptable; all right : Is it OK if I bring a friend to the party? "Will you lend me ten bucks?" "OK."
OK
verb [T] (singular OK's, present participle OK'ing or okaying, past tense and past participle OK'd or okayed) (also okay)  /ˈoʊˈkeɪ, ˌoʊˈkeɪ, ˈoʊˌkeɪ/ us  
Did the boss OK your proposal?

OK

adjective, adverb (also okay)  /ˈoʊˈkeɪ, ˌoʊˈkeɪ, ˈoʊˌkeɪ/ us  

OK adjective, adverb (SATISFACTORY)

in a satisfactory state or of a satisfactory quality; all right : Are you OK? You look pale. I hope you got home OK. OK is used to mean not bad but also not very good: Her voice is OK, but it’s nothing special.

OK

noun [C] (also okay)  /ˈoʊˈkeɪ, ˌoʊˈkeɪ, ˈoʊˌkeɪ/ us  

OK noun [C] (AGREED)

agreement about or permission to do something: We’ll start building as soon as we get the OK from the owner.
(Definition of OK exclamation, adjective, adjective, adverb, noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of OK?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “OK”

Definitions of “OK” in other dictionaries

Word of the Day

see the light of day

When something sees the light of day, it appears for the first time.

Word of the Day

Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.

by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More