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To begin your search, go to the alphabetical index below and click on the first letter of the word you are searching for.

OK, O.K., okay

Okay and the abbreviations OK and O.K. are informal and should be replaced by synonyms such as acceptable, all right, correct, approval, authorize or recommend in formal writing.

  • Ian says he’ll be okay (all right) once his cold clears up.
  • Once we have the Board’s okay (approval), we can begin hiring staff for the project.
  • Jill okayed (authorized) the travel claims submitted by her staff.

In everyday writing, choose okay rather than OK or O.K.

  • Are my vacation plans okay (not O.K.) with you?

The plural of the abbreviations is formed by adding ’s (OK’s or O.K.’s).

  • You should replace the two OK’s in your email message with the word okay or with a more formal synonym.