colloquialism vs keen

colloquialism and keen both are nouns.

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

colloquialism (noun)	keen (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech	a funeral lament sung with loud wailing

colloquialism (adjective)	keen (adjective)
	excellent
	intense or sharp
	having or demonstrating ability to recognize or draw fine distinctions
	having a sharp cutting edge or point
	painful as if caused by a sharp instrument

colloquialism (verb)	keen (verb)
	express grief verbally