presence chamber vs room

presence chamber and room both are nouns.

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

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

presence chamber: room in which a monarch or other great person receives guests, assemblies, etc.
room: an area within a building enclosed by walls and floor and ceiling

presence chamber (noun)	room (noun)
room in which a monarch or other great person receives guests, assemblies, etc.	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

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