inhabit vs room

inhabit is not a noun while room is a noun.

Word	Noun	Adjective	Verb	Adverb
inhabit	No	No	Yes	No
room	Yes	No	Yes	No

As verbs, room is a hyponym of inhabit; that is, room is a word with a more specific, narrower meaning than inhabit:

inhabit (noun)	room (noun)
	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

inhabit (verb)	room (verb)
be an inhabitant of or reside in	live and take one's meals at or in
be present in
exist or be situated within