OK

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. [orig. US: prob. abbr. of orl (or oll) korrect, joc. form of 'all correct']