keen vs colloquialism

keen and colloquialism both are nouns.

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

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

keen (adjective)	colloquialism (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

keen (verb)	colloquialism (verb)
express grief verbally