dining-room vs buffet

dining-room and buffet both are nouns.

Word	Noun	Adjective	Verb	Adverb
dining-room	Yes	No	No	No
buffet	Yes	No	Yes	No

dining-room (noun)	buffet (noun)
a room used for dining	a piece of furniture that stands at the side of a dining room; has shelves and drawers
	usually inexpensive bar
	a meal set out on a buffet at which guests help themselves

dining-room (verb)	buffet (verb)
	strike against forcefully
	strike, beat repeatedly