backup light
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noun
a light at the rear of a motor vehicle that lights as a warning to those behind.
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Which of the following nouns has an irregular plural form?
Also called backing light.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use backup light in a sentence
British Dictionary definitions for backup light
back-up light
noun
US and Canadian a light on the rear of a motor vehicle to warn others that the vehicle is being reversedAlso called: reversing light
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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