1. adj., adv., n., & v. (also okay) colloq.
--adj. (often as int. expressing agreement or acquiescence) all right; satisfactory.
--adv. well, satisfactorily (that worked out OK).
--n. (pl. OKs) approval, sanction.
--v.tr. (OK's, OK'd, OK'ing) give an OK to; approve, sanction.
Etymology: orig. US: prob. abbr. of orl (or oll) korrect, joc. form of 'all correct' 2. abbr. US Oklahoma (in official postal use).