Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “tail light”

tail light

noun [C]   US (UK rear light)
one of the two red lights on the back of a car The exterior of vehicles
(Definition of tail light noun from the Cambridge Learner's Dictionary © Cambridge University Press)

More Learner's Dictionary definitions for “tail light”

Definitions of “tail light” in other dictionaries

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More