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rear light

British  

noun

  1. Also called: tail-light.   tail lamp.  a red light, usually one of a pair, attached to the rear of a motor vehicle

"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

Example Sentences

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A "simplification" of rear light systems to allow "clearer and more consistent visual cues to improve visibility and reaction time for following drivers in poor conditions".

From BBC • Apr. 20, 2026

You want to make sure that drivers see you, so we recommend having front and rear lights, generally a white light and a red rear light, and you can pair them with reflectors.

From Washington Post • Jun. 2, 2022

Donald was stopped for what Boyle described as a faulty rear light after deputies responded Feb. 4 to a neighborhood report of two cars suspiciously circling the area.

From Washington Times • Apr. 29, 2021

The rear light integrated into the seat post / battery is also a brake light that brightens and then flashes when pulling either brake caliper.

From The Verge • Oct. 10, 2020

Watching its rear light dwindle, he fancied that the grey shadow was slowing down; but one could not be sure about that.

From Alias the Lone Wolf by Vance, Louis Joseph