homestretch vs colloquialism

homestretch and colloquialism both are nouns.

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

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