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OK1

Pronunciation: /əʊˈkeɪ/
(also okay)
informal
Translate OK | into French | into German | into Italian | into Spanish
Definition of OK

exclamation

  • used to express agreement or acceptance:OK, I’ll pass on your message OK, OK, I give in
  • used to introduce an utterance:‘OK, let’s go’

adjective

[predic.]
  • satisfactory but not especially good:the flight was OK
  • in a satisfactory physical or mental state:are you okay, Ben?
  • permissible; allowable:it’s not OK to say that to a teacher

adverb

  • in a satisfactory manner or to a satisfactory extent:the computer continues to work OK

noun

[in singular]
  • an authorization or approval:the officer gave me the OK

verb (OK's, OK'ing, OK'd)

[with object]
  • give approval to:despite objections, the committee ok’d the construction

Origin:

mid 19th century (originally US): probably an abbreviation of orl korrect, humorous form of all correct, popularized as a slogan during President Van Buren's re-election campaign of 1840 in the US; his nickname Old Kinderhook (derived from his birthplace) provided the initials

OK in other Oxford dictionaries

Definition of OK in the US English dictionary
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