carpooler

or car pool·er

[ kahr-poo-ler ]

noun

1. a member of a carpool.

Word History and Origins

Origin of carpooler¹

carpool + -er ¹

Example Sentences

When the lanes open, carpoolers will be allowed to ride free.

From Washington Post

Express lanes are free for carpoolers with three or more people who have the EZ-Pass Flex on HOV mode.

From Washington Post