enough vs plenty

enough

adv
  • Sufficiently. 

  • Used after certain adverbs to emphasise that a quality is notable, unexpected, etc. 

  • Fully; quite; used after adjectives to express slight augmentation of the positive degree, and sometimes equivalent to very. 

pron
  • A sufficient or adequate number, amount, etc. 

intj
  • Stop! Don't do that any more! 

noun
  • An instance of being sufficient, or of doing something sufficiently. 

det
  • Sufficient; all that is required, needed, or appropriate. 

plenty

adv
  • More than sufficiently. 

  • Used as an intensifier, very. 

pron
  • More than enough. 

det
  • much, enough 

  • many 

noun
  • A more-than-adequate amount. 

How often have the words enough and plenty occurred in a corpus of books? (source: Google Ngram Viewer )