Endorsement; approval.

(transitive) To approve. / (transitive, computing) To confirm by activating a button marked OK.

All right, acceptable, permitted. / Satisfactory, reasonably good; not exceptional. / Satisfied (with); willing to accept a state of affairs. / In good health or a good emotional state.

Satisfactorily, sufficiently well.

Used to indicate acknowledgement or acceptance. / (computing) Used to dismiss a dialog box or confirm a prompt.

United States postal abbreviation for Oklahoma, a state of the United States of America.

(informal) Alternative letter-case form of OK

(obsolete) simple past tense of ache / (obsolete) simple past tense of ake

(historical units of measurement) Alternative form of oka.

(South Africa, slang) Man; guy; bloke.