/ Dictionary / Index T twi-night: Meaning and Definition of Find definitions for: twi-night Pronunciation: (twī'nīt"), [key] — adj. Baseball. pertaining to or noting a doubleheader in which the first game begins late in the afternoon and the second in the evening under lights. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. twinge twi-nighter Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language