Dictionary.com

traffic cop

noun Informal.

a police officer who directs the flow of traffic, usually at an intersection.

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Origin of traffic cop

An Americanism dating back to 1910–15

Words nearby traffic cop

trafficability, trafficable, trafficator, traffic calming, traffic circle, traffic cop, traffic court, traffic engineering, traffic island, traffic jam, trafficky
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for traffic cop

traffic cop

noun

informal a policeman who supervises road traffic
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