Adverb
1. very well
Adjective
1. fine, alright, all right, OK, all right
Noun
1. fine, o.k., okay, hunky-dory, satisfactory, Oklahoma
2. Sooner State, OK, American state, O.K.
2. OK, okay, okey, okeh, sanction, countenance, endorsement, indorsement, warrant, imprimatur