We found 2 definitions of o.k. from 2 different sources.
Noun |
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o.k. - an endorsement; "they gave us the O.K. to go ahead" | ||
OK, okay, okey, okeh | ||
imprimatur, countenance, sanction, warrant, endorsement, indorsement the appearance conveyed by a person's face; "a pleasant countenance"; "a stern visage" |