paperhanger vs colloquialism

paperhanger and colloquialism both are nouns.

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

paperhanger (noun)	colloquialism (noun)
one whose occupation is decorating walls with wallpaper	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
someone who passes bad checks or counterfeit paper money