/ Dictionary / Index R round-tripper: Meaning and Definition of Find definitions for: round-trip•per Pronunciation: (round'trip'ur), [key] — n. Baseball Informal. a home run. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. round trip round turn Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language