Johnny vs colloquialism

Johnny and colloquialism both are nouns.

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

Johnny (noun)	colloquialism (noun)
`Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback' derived from their grey Confederate uniforms	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech