buffet vs credenza

buffet and credenza both are nouns.

Word	Noun	Adjective	Verb	Adverb
buffet	Yes	No	Yes	No
credenza	Yes	No	No	No

As nouns, credenza is a hyponym of buffet; that is, credenza is a word with a more specific, narrower meaning than buffet:

buffet: a piece of furniture that stands at the side of a dining room; has shelves and drawers
credenza: a kind of sideboard or buffet

Other hyponyms of buffet include credence, cellaret, minibar.

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

buffet (verb)	credenza (verb)
strike against forcefully
strike, beat repeatedly