: a ship designed and equipped to allow vehicles (such as automobiles or tanks) to be driven on or off

Word History

Etymology

roll on, roll off

First Known Use

1969, in the meaning defined above

Time Traveler
The first known use of Ro-Ro was in 1969

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Cite this Entry

“Ro-Ro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Ro-Ro. Accessed 27 Feb. 2025.

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