chamber vs dorm room

chamber and dorm room both are nouns.

Word	Noun	Adjective	Verb	Adverb
chamber	Yes	No	Yes	No
dorm room	Yes	No	No	No

As nouns, dorm room is a hyponym of chamber; that is, dorm room is a word with a more specific, narrower meaning than chamber:

chamber (noun)	dorm room (noun)
a natural or artificial enclosed space	a large sleeping room containing several beds
a room used primarily for sleeping
a room where a judge transacts business
an enclosed volume in the body
a deliberative or legislative or administrative or judicial assembly

chamber (verb)	dorm room (verb)
place in a chamber