/ Dictionary / Index T twenty-twenty: Meaning and Definition of Find definitions for: twen•ty-twen•ty Pronunciation: (twen'tē-twen'tē, twun'tē-twun'tē), [key] — adj. having normal visual acuity. keenly or acutely perceptive: an opinion based on twenty-twenty hindsight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: twenty-twenty (Thesaurus) twenty-three twenty-two Related Content Daily Word Quiz: cur Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language