colloquialism vs someplace

colloquialism is a noun but someplace is not a noun.

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

colloquialism (noun)	someplace (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech

colloquialism (adverb)	someplace (adverb)
	in or at or to some place