Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “OK”

OK

noun (also okay)     /ˌəʊˈkeɪ/ US  /ˌoʊ-/
the OK (also the okay) [S] permission : He's got the OK to go ahead with his project .Allowing and permitting
(Definition of OK noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of OK

Browse related topics

You are looking at an entry to do with Allowing and permitting, but you might be interested in these topics from the Law and the police topic area:

Definitions of “OK” in other dictionaries

Word of the Day

as husband and wife

in the same way as two people who are married

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More