I. adverb or adjective
or okay ō-ˈkā, in assenting or agreeing also ˈō-ˌkā
Etymology: abbreviation of oll korrect, facetious alteration of all correct
Date: 1839
: all right
II. noun
or okay ō-ˈkā
Date: 1841
: approval , endorsement
III. transitive verb
or okay ō-ˈkā
( OK'd or okayed ; OK'·ing or okay·ing )
Date: 1888
: approve , authorize
IV. abbreviation
Oklahoma