A round trip is a journey there and back again on one ticket. Book a round trip, a round trip fare, the round trip takes an hour.
It is the American term; Britain says return. In computing a round trip is one exchange with a server and back, and cutting the number of them is most of what makes a page feel fast.
1phraseround tripA journey there and back again on one ticket.
“A round trip to the coast by train costs less than two single tickets.”
round trip is a journey.
Also accepted in games: return trip, return
Round plus trip, from the idea of a journey that comes back around to its start.
From round + trip.
Etymology from Wiktionary, CC BY-SA
Practised in Travel & Transport