chamber vs motel room

chamber and motel room both are nouns.

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

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

chamber (noun)	motel room (noun)
a natural or artificial enclosed space	a sleeping room in a motel
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)	motel room (verb)
place in a chamber