Round-trip is a term used for a journey where a person travels from one place to another and then returns to the same starting point. There are several synonyms for the term round-trip, which include return journey, two-way journey, back and forth, roundabout, circuit, circumnavigation, and looping. Return journey and two-way journey are the most commonly used synonyms of round-trip and refer to the journey back to the starting point. Back and forth, looping, and roundabout refer to the repetitive nature of the journey where the person goes back and forth between two points. Circumnavigation and circuit refer to a complete loop around a place or destination before returning to the starting point.