buffet vs minibar

buffet and minibar both are nouns.

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

As nouns, minibar is a hyponym of buffet; that is, minibar 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
minibar: sideboard with compartments for holding bottles

Other hyponyms of buffet include credence, credenza, cellaret.

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

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