ringer vs colloquialism

ringer and colloquialism both are nouns.

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

ringer (noun)	colloquialism (noun)
(horseshoes) the successful throw of a horseshoe or quoit so as to encircle a stake or peg	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
a contestant entered in a competition under false pretenses
a person who is almost identical to another
a person who rings church bells (as for summoning the congregation)