minibar vs sideboard

minibar and sideboard both are nouns.

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

As nouns, sideboard is a hypernym of minibar; that is, sideboard is a word with a broader meaning than minibar:

minibar: sideboard with compartments for holding bottles
sideboard: a piece of furniture that stands at the side of a dining room; has shelves and drawers

Other hypernyms of minibar include buffet, counter.

minibar (noun)	sideboard (noun)
sideboard with compartments for holding bottles	a piece of furniture that stands at the side of a dining room; has shelves and drawers
	a board that forms part of the side of a bed or crib
	a removable board fitted on the side of a wagon to increase its capacity