mint vs peppermint

mint and peppermint both are nouns.

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

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

Other hyponyms of mint include peppermint candy.

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

mint: any north temperate plant of the genus Mentha with aromatic leaves and small mauve flowers
peppermint: herb with downy leaves and small purple or white flowers that yields a pungent oil used as a flavoring

mint (noun)	peppermint (noun)
a plant where money is coined by authority of the government	a candy flavored with peppermint oil
a candy that is flavored with a mint oil	herb with downy leaves and small purple or white flowers that yields a pungent oil used as a flavoring
the leaves of a mint plant used fresh or candied	red gum tree of Tasmania
any north temperate plant of the genus Mentha with aromatic leaves and small mauve flowers
any member of the mint family of plants
(often followed by `of') a large number or amount or extent

mint (adjective)	peppermint (adjective)
as if new

mint (verb)	peppermint (verb)
form by stamping, punching, or printing