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Children's Dictionary

OK [or] O.K. [or] okay1

o keI [or] o keI
parts of speech:
adjective, adverb, interjection, noun, verb
part of speech: adjective
definition: (informal) all right; satisfactory.
That restaurant is OK, but this one is excellent.She felt sick yesterday, but she is OK now.
similar words:
all right, fine, satisfactory
part of speech: adverb
definition: (informal) acceptably; all right.
He did OK on the history test.
part of speech: interjection
definition: "all right"; "yes."
OK, I'll do it.
similar words:
all right
part of speech: noun
inflections: OK's, O.K.'s, okays
definition: (informal) a sign of approval or acceptance.
My parents gave their OK for the party.
part of speech: verb
inflections: OK's, O.K.'s, okays, OK'ing, O.K.'ing, okaying, OK'd, O.K.'d, okayed
definition: (informal) to agree to; approve.
Did your teacher OK your idea for the science project?
similar words:
approve, clear