'Twenty' definitions:

Definition of 'twenty'

From: WordNet
adjective
Denoting a quantity consisting of 20 items or units [syn: twenty, 20, xx]
noun
The cardinal number that is the sum of nineteen and one [syn: twenty, 20, XX]
noun
A United States bill worth 20 dollars [syn: twenty dollar bill, twenty]

Definition of 'Twenty'

From: GCIDE
  • Twenty \Twen"ty\ (tw[e^]n"t[y^]), a. [OE. twenty, AS. tw[=e]ntig, twentig; akin to OFries. twintich, OS. tw[=e]ntig, D. & LG. twintig, OHG. zweinzug, G. zwanzig, Goth. twai tigjis; that is, two tens. See Twain, Two, and Ten.]
  • 1. One more than nineteen; twice ten; as, twenty men. [1913 Webster]
  • 2. An indefinite number more or less that twenty. --Shak. [1913 Webster]
  • Maximilian, upon twenty respects, could not have been the man. --Bacon. [1913 Webster]

Definition of 'Twenty'

From: GCIDE
  • Twenty \Twen"ty\, n.; pl. Twenties.
  • 1. The number next following nineteen; the sum of twelve and eight, or twice ten; twenty units or objects; a score. [1913 Webster]
  • 2. A symbol representing twenty units, as 20, or xx. [1913 Webster]