Roundtrip

Two roundtrip tickets to Osaka, please.

A U.S. spacecraft is returning to Earth with a precious cargo of stardust that was gathered during a 4.5 billion-kilometer roundtrip journey to a distant comet. Scientists around the world will examine the material to better understand the origins of our solar system.

Left with only her Sun-Times subscribers, she faced a 35-mile roundtrip to deliver to four of them.

In the colorimetric intents only the values within the gamut of the data encoding can be roundtripped accurately[…]

In some cases, roundtripping can involve repeated conversions of the file from one format to another and back. Frequent roundtripping may be a concern because each conversion has the potential to introduce unwanted changes to the file.