peppermint vs peppermint candy

peppermint and peppermint candy both are nouns.

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

As nouns, peppermint and peppermint candy are synonyms defined as:

peppermint (noun)	peppermint candy (noun)
a candy flavored with peppermint oil	a candy flavored with peppermint oil
herb with downy leaves and small purple or white flowers that yields a pungent oil used as a flavoring
red gum tree of Tasmania