colloquialism vs okay

colloquialism and okay both are nouns.

Word	Noun	Adjective	Verb	Adverb
colloquialism	Yes	No	No	No
okay	Yes	Yes	Yes	Yes

colloquialism (noun)	okay (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech	an endorsement

colloquialism (adjective)	okay (adjective)
	being satisfactory or in satisfactory condition

colloquialism (verb)	okay (verb)
	give sanction to

colloquialism (adverb)	okay (adverb)
	in a satisfactory or adequate manner