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.

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Green Day to open 60th Super Bowl with anniversary …

OK definition: all right; proceeding normally; satisfactory or under control. See examples of OK used in a sentence.

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

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Jan 10, 2026 · “OK grew out of a kind of abbreviation play that was popular in the U.S. and the U.K. at the time, long before text-speak. It’s funny because it combined two playful trends ― comical …

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 Earth to …

OK definition: Satisfactory or agreeable; acceptable.