carpool lane

noun

plural carpool lanes
: a traffic lane (as on a freeway) reserved for high-occupancy vehicles : hov lane
Opening the carpool lanes is one part of overall improvements, … including new bridges, updated on- and off-ramps and more.Juliet Lemar

Word History

First Known Use

1970, in the meaning defined above

Time Traveler
The first known use of carpool lane was in 1970

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Cite this Entry

“Carpool lane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carpool%20lane. Accessed 26 Aug. 2026.

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