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.

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

Jan 13, 2016 · Definitions of okay adjective being satisfactory or in satisfactory condition “things are okay ” synonyms: all right, fine, hunky-dory, o.k., ok satisfactory giving satisfaction

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 Morning Post. …

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

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

“OK” is more informal and versatile, while “Okay” is more formal and emphatic. Understanding these subtle differences can help you choose the right word for the right situation.

Sep 16, 2022 · Is there a difference between okay and OK? No. The meaning and usage are the same. The extremely versatile okay and OK can express agreement, change the topic, check for …

Jan 10, 2026 · Despite OK's ubiquity, many people don't know the words behind this two-letter agreement.