Did you know?

Click any word in a definition or example to find the entry for that word

OK - definition and synonyms

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Thesaurus diagram

The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

interjection     OK pronunciation in British English
  1. 1
    used for showing that you agree with something, approve of it, or understand it

    ‘I’d like to buy some new clothes.’ ‘OK.’

    OK, but I don’t see how that proves your point.

    1. a.
      used for asking if someone agrees with what you have just said, or if he or she understands it

      Let’s go and see a film tonight, OK?

      So that means that ‘C’ is the best answer. OK?

  2. 2
    used when you want to start talking about something or want to continue discussing it after a pause

    OK, I think we were looking at page seven.

    OK. Everyone ready?

  3. 3
    used when you want someone to stop arguing with you or criticizing you. This word often shows that you accept what they are saying but do not think it is important

    ‘Your boss will be angry if you’re late.’ ‘OK, but he won’t sack me.’

    OK. You’re right. I should have called you sooner.

    1. a.
      used for showing that you are ready to end a conversation, especially on the telephone

      OK, I just wanted to make sure that you got home.


deep learning

a form of machine learning which incorporates the use of neural networks

BuzzWord Article

Open Dictionary

snap election

a general election … that is called earlier than expected

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog
Macmillan learn live love play