marshmallow vs candy

marshmallow and candy both are nouns.

Word	Noun	Adjective	Verb	Adverb
marshmallow	Yes	No	No	No
candy	Yes	No	Yes	No

As nouns, candy is a hypernym of marshmallow; that is, candy is a word with a broader meaning than marshmallow:

marshmallow: spongy confection made of gelatin and sugar and corn syrup and dusted with powdered sugar
candy: a rich sweet made of flavored sugar and often combined with fruit or nuts

Other hypernyms of marshmallow include confect.

marshmallow (noun)	candy (noun)
spongy confection made of gelatin and sugar and corn syrup and dusted with powdered sugar	a rich sweet made of flavored sugar and often combined with fruit or nuts

marshmallow (verb)	candy (verb)
	coat with something sweet, such as a hard sugar glaze