colloquialism vs dandy

colloquialism and dandy both are nouns.

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

colloquialism (noun)	dandy (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech	a sailing vessel with two masts; a small mizzen is aft of the rudderpost
	a man who is much concerned with his dress and appearance

colloquialism (adjective)	dandy (adjective)
	excellent