colloquialism vs comfy

colloquialism is a noun but comfy is not a noun.

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

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

colloquialism (adjective)	comfy (adjective)
	providing or experiencing physical well-being or relief (`comfy' is informal)