buffet vs commissary

buffet and commissary both are nouns.

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

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

Other hyponyms of buffet include milk bar.

buffet (noun)	commissary (noun)
a piece of furniture that stands at the side of a dining room; has shelves and drawers	a retail store that sells equipment and provisions (usually to military personnel)
usually inexpensive bar	a snack bar in a film studio
a meal set out on a buffet at which guests help themselves

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