colloquialism vs fossil

colloquialism and fossil both are nouns.

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

colloquialism (noun)	fossil (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech	the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
	someone whose style is out of fashion

colloquialism (adjective)	fossil (adjective)
	characteristic of a fossil