OK


OK
Ⅰ.
OK [1] (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 [2] ABBREVIATION Oklahoma.

English terms dictionary. 2015.