noun Also car pool.

Also car·pool·ing, car pooling. an arrangement among a group of automobile owners by which each owner in turn drives the others or their children to and from a designated place.
those included in such an arrangement.

verb (used without object)

Also car-pool. to form or participate in a carpool.

Origin of carpool

First recorded in 1940–45; car1 + pool2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for car-pool

Historical Examples of car-pool

  • Most of those which had been rented for the day had been returned to the car-pool garages.


    Dallas McCord Reynolds

British Dictionary definitions for car-pool


verb, noun

another term for carshare
Derived Formscarpooling, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for car-pool

also carpool, 1942, American English, from car + pool (n.2). As a verb from 1962. Related: Carpooled; carpooling.

Online Etymology Dictionary, © 2010 Douglas Harper