American English

Definition of OK exclamation from the Oxford Advanced American Dictionary



    (also okay) exclamation
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  1. 1used to express agreement or give permission for something “Shall we go for a walk?” “OK.” (computing) Click on OK to terminate the application.
  2. 2used to attract someone's attention or to introduce a comment Okay, let's go.
  3. 3used to make sure that someone agrees with you or understands you The meeting's at 2, OK? I'll do it my way, OK?
  4. 4used to stop people from arguing with you or criticizing you OK, so I was wrong. I'm sorry.
See the Oxford Advanced Learner's Dictionary entry: OK