n. (informal)
25B6; exclamation OK, I'll go with him : ALL RIGHT, right, right then, right you are, very well, very good, fine; informal okey-doke(y); Brit. informal righto, righty-ho.
25B6; adjective
the film was OK : SATISFACTORY, all right, acceptable, competent; adequate, tolerable, passable, reasonable, fair, decent, not bad, average, middling, moderate, unremarkable, unexceptional; informal so-so, fair-to-middling.
Jo's feeling OK now : FINE, all right, well, in good shape, in good health, fit, healthy, as fit as a fiddle/flea.
it is OK for me to come? : PERMISSIBLE, allowable, acceptable, all right, in order, permitted, fitting, suitable, appropriate.
unsatisfactory, ill.
25B6; noun he's just given me the OK : AUTHORIZATION, approval, seal of approval, agreement, consent, assent, permission, endorsement, ratification, sanction, approbation, confirmation, blessing, leave; informal the go-ahead, the green light, the thumbs up, say-so.
refusal.
25B6; verb the move must be okayed by the president : AUTHORIZE, approve, agree to, consent to, sanction, pass, ratify, endorse, allow, give something the nod, rubber-stamp; informal give the go-ahead, give the green light, give the thumbs up; formal accede to.
refuse, veto.