Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “traffic light”

traffic light

noun [C usually plural]    
A2 one of a set of red , yellow , and green lights that control the movement of vehicles , usually at a point where two or more roads join : The police pulled him over for failing to stop at a red traffic light . Turn left at the traffic lights . The traffic lights turned green as we approached the junction .Lights, signs and markings on roads
(Definition of traffic light noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of traffic light

Definitions of “traffic light” in other dictionaries

Word of the Day

as husband and wife

in the same way as two people who are married

Word of the Day

Blog

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