colloquialism vs homestretch

colloquialism and homestretch both are nouns.

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

colloquialism (noun)	homestretch (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech	the straight stretch of a racetrack leading to the finish line
	the end of an enterprise