Definition of “traffic light” - English Dictionary

british dictionary

“traffic light” in British English

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traffic lightnoun [ C usually plural ]

uk /ˈtræf.ɪk ˌlaɪt/ us /ˈtræf.ɪk ˌlaɪt/ US also stoplight

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.

(Definition of “traffic light” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“traffic light” in American English

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traffic lightnoun [ C ]

us /ˈtræf·ɪk ˌlɑɪt/ also light, stoplight

a set of red, yellow, and green lights that control the movement of vehicles at a point where two or more streets meet

(Definition of “traffic light” from the Cambridge Academic Content Dictionary © Cambridge University Press)