/ Dictionary / Index R round trip: Meaning and Definition of Find definitions for: round' trip' Pronunciation: [key] a trip to a given place and back again: Fares for round trips often have a discount. a transportation ticket for such a trip. roundhouse (def. 4). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. round-the-clock round-tripper 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