anechoic chamber vs room

anechoic chamber and room both are nouns.

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

As nouns, room is a hypernym of anechoic chamber; that is, room is a word with a broader meaning than anechoic chamber:

anechoic chamber (noun)	room (noun)
a chamber having very little reverberation	an area within a building enclosed by walls and floor and ceiling
	the people who are present in a room
	space for movement
	opportunity for

anechoic chamber (verb)	room (verb)
	live and take one's meals at or in