john vs room

john and room both are nouns.

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

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

john (noun)	room (noun)
a room or building equipped with one or more toilets	an area within a building enclosed by walls and floor and ceiling
a prostitute's customer	the people who are present in a room
	space for movement
	opportunity for

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