OK is commonly rendered in upper case and without punctuation: OK, rather than O.K. or Okay. The OK button can probably be traced to user interface research done for the Apple Lisa.

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

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

You can say ' Okay? ' to check whether the person you are talking to understands what you have said and accepts it.

Okay is used as an adverb in informal speech, meaning ‘all right’, ‘neither well nor badly’: …

OK From Longman Dictionary of Contemporary English OK1, okay /ˌəʊ ˈkeɪ $ ˌoʊ-/ S1 interjection 1 used to show that you agree with something or give permission for someone to do …

Dec 8, 2025 · Okay vs Ok: what’s correct? This student-friendly grammar guide explains spelling, usage, examples, rules, and exercises for English learners.

What Is the Origin of the "Okay"? The abbreviation "OK" (which later turned into the globally used word "okay") was first noted in 1839 in the office of Charles Gordon Greene at the Boston …

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 …

Nov 26, 2025 · Both ‘ok’ and ‘okay’ are used in British English and there is no significant difference in usage between the two. However, ‘okay’ is generally considered to be slightly …