Open English Wordnet
Nouns
(n)enough, sufficiencyan adequate quantity; a quantity that is large enough to achieve a purpose“enough is as good as a feast”,
“there is more than a sufficiency of lawyers in this country” Adjectives
(s)adequate, enoughsufficient for the purpose“an adequate income”,
“the food was adequate”,
“enough food”,
“food enough” Adverbs
(r)enough, plentyas much as necessary“have I eaten enough?”,
“I've had plenty, thanks (‘plenty’ is nonstandard)”