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 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.

Despite OK's ubiquity, many people don't know the words behind this two-letter agreement.

Feb 26, 2025 · "OK," "okay," or "okey" are terms we use to approve, confirm, reassure, or simply keep a conversation going. The interesting thing is that despite its simplicity, its history is full of …

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 …

If something's ok, it's not terrible, but it's not wonderful either — it's simply ok. You can use this informal word to ask if something's acceptable: "Hey, is it ok if I borrow your car?"

In the case of O.K., the abbreviation is of "oll korrect." Also see P.D.Q. Probably further popularized by its use by both parties in the raucous 1840 U.S. presidential election.