plenty vs enough

plenty and enough both are nouns.

Word	Noun	Adjective	Verb	Adverb
plenty	Yes	No	No	Yes
enough	Yes	Yes	No	Yes

As adverbs, plenty and enough are synonyms defined as:

plenty (noun)	enough (noun)
a full supply	an adequate quantity; a quantity that is large enough to achieve a purpose
(often followed by `of') a large number or amount or extent

plenty (adjective)	enough (adjective)
	sufficient for the purpose

plenty (adverb)	enough (adverb)
as much as necessary	as much as necessary