Definition of "roundtrip" [roundtrip]

• A trip from one place to another and back, usually over the same route. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I just came back from a swing through Illinois, Kentucky, and Nebraska and got what I considered a bargain roundtrip ticket ..."
• "I bought a literally last-minute roundtrip airfare from New York to Los Angeles just to vote."
• "He said he is now driving 80 miles roundtrip to Trinidad to get drinking water."