OK
noun/əʊˈkeɪ/
/əʊˈkeɪ/
the OK
[singular] (informal)- permission synonym go-ahead
- I'm still waiting for the boss to give me the OK.
Extra Examples- Mum's given me the OK to go out.
- The building plans finally got the OK.
Word Originmid 19th cent. (originally US): probably an abbreviation of orl korrect, humorous form of all correct, popularized as a slogan during President Van Buren's re-election campaign of 1840 in the US; his nickname Old Kinderhook (derived from his birthplace) provided the initials.
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OK