1. (n.) The act of approving; sanction\; an assenting to the propriety of a thing with some degree of pleasure or satisfaction; approval; sanction; commendation.

2. (n.) Proof; probation or novitiate.

John Hancock OK acceptance accord account acquiescence adherence admiration adoration affirmance affirmation affirmative affirmative voice agreement apotheosis appreciation approval assent authentication authorization awe aye benediction blessing breathless adoration certification commendation compliance confirmation connivance consent consideration countenance countersignature courtesy credit deference deification duty eagerness endorsement esteem estimation exaggerated respect favor favorable vote go-ahead goodwill great respect green light hero worship high regard homage honor idolatry idolization imprimatur liking nod notarization okay permission pleasure prestige promptitude promptness ratification readiness regard respect reverence reverential regard rubber stamp sanction satisfaction seal seal of approval sigil signature signet stamp stamp of approval submission subscription the nod ungrudgingness unloathness unreluctance validation veneration visa vise voice vote warrant willingness worship worth yea yea vote