council chamber vs room

council chamber and room both are nouns.

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

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

council chamber: a room where a committee meets (such as the board of directors of a company)
room: an area within a building enclosed by walls and floor and ceiling

council chamber (noun)	room (noun)
a room where a committee meets (such as the board of directors of a company)	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

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