- Ⅰ.OK  (also okay) informal ► EXCLAMATION 1) expressing agreement or acquiescence. 2) introducing an utterance.► ADJECTIVE 1) satisfactory, but not especially good. 2) permissible.► ADVERB ▪ in a satisfactory manner or to a satisfactory extent.► NOUN ▪ an authorization or approval.► VERB (OK's, OK'd, OK'ing) ▪ give approval to.ORIGIN 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.Ⅱ.OK  ► ABBREVIATION ▪ Oklahoma.
English terms dictionary. 2015.