definition of
o.k.

[1] #1 o.k. s. being satisfactory or in satisfactory condition; "an all-right movie"; "the passengers were shaken up but are all right"; "is everything all right?"; "everything's fine"; "things are okay"; "dinner and the movies had been fine"; "another minute I'd have b. wn

[2] #2 O.K. n. an endorsement; "they gave us the O.K. to go ahead". wn

[3] #3 O.K. v. give sanction to; "I approve of his educational policies". wn

[4] #4 O.K. r. in a satisfactory or adequate manner; "she'll do okay on her own"; "held up all right under pressure"; ('alright' is a nonstandard variant of 'all right'). wn