OK (/ ˌoʊˈkeɪ / ⓘ), with spelling variations including okay, O.K. and many others, is an English word (originating in American English) denoting approval, acceptance, agreement, assent, …

The meaning of OK is all right. How to use OK in a sentence.

Okay, OK, and O.K. are all the same words and can be used interchangeably with one another in both informal and formal writing scenarios. In fact, OK is the original preferred spelling of the …

OK meaning: 1. used to show that you agree with something or agree to do something: 2. used to check that…. Learn more.

OK definition: Satisfactory or agreeable; acceptable.

Jul 23, 2025 · During the 1960s, NASA astronauts popularized the phrase "A-OK" to signal that all systems were go. And 56 years ago this week, "OK" was among the first words spoken from …

OK please: used to express assent, concession, or approval, esp. with regard to a previous statement, question, or request: ‘yes’, ‘all right’, ‘ok’.