I suppose the meaning matches, although ok technically is slang. Believe it or not, the term "ok" comes from a campaign slogan of President Van Buren in 1840. It's an abbreviation of the phrase, "orl korrect" or "all correct". It was popularized by Van Buren who was also known as, "Old Kinderhook." What amazes me is a campaign slogan from 1840 is now so pervasive in our language that you will hear the term used in other languages around the world. I have heard an Italian say something was "ok" in Italian. Language in fascinating.