canary vs colloquialism

canary and colloquialism both are nouns.

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

canary (noun)	colloquialism (noun)
any of several small Old World finches	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
a moderate yellow with a greenish tinge
a female singer
someone acting as an informer or decoy for the police

canary (adjective)	colloquialism (adjective)
having the color of a canary; of a light to moderate yellow