traffic light


: a visual signal (such as a system of colored lights) for controlling traffic

Examples of traffic light in a Sentence

Take a left at the traffic light.
Recent Examples on the Web The state is converting the highway to a ground-level road with traffic lights in that area via the S.M. Wright Phase II transportation project. Holly Haber, Dallas News, 18 Sep. 2023 Recently, other researchers also based in Germany worked on the KI4LSA project, which uses artificial intelligence and edge computing for predictive control of traffic lights. IEEE Spectrum, 22 Aug. 2023 Three of the sculptures feature light-up displays: Edison's lightbulb and phonograph and Garrett Morgan's traffic light. Annasofia Scheve, The Enquirer, 25 July 2023 Roads remained blocked by tree trunks and downed power lines, and traffic lights were still blacked out at major intersections. CBS News, 1 Sep. 2023 This causes the chlorophyll, the substance that makes the leaves green, break down and the leaves, er, die, slowly, resulting in some stunning autumnal tones from burgundy red to traffic light yellow. Hadley Mendelsohn, House Beautiful, 30 Aug. 2023 An early morning video the Tampa Police Department posted to Facebook showed waves from the coast crashing over a railing and flooding the waterfront road of Bayshore Boulevard as winds whipped palm trees and traffic lights around 2:45 a.m. Julianne McShane, NBC News, 30 Aug. 2023 At one traffic light, Brady was snapped caressing Shayk’s face as the two talked in the front seat of his black Rolls Royce. Sam Burros, Peoplemag, 28 Aug. 2023 Eventually, traffic lights might become virtual, making a whole range of decisions on their own by communicating directly with vehicles. IEEE Spectrum, 22 Aug. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'traffic light.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1912, in the meaning defined above

Time Traveler
The first known use of traffic light was in 1912

Dictionary Entries Near traffic light

Cite this Entry

“Traffic light.” Dictionary, Merriam-Webster, Accessed 29 Sep. 2023.

Kids Definition

traffic light

: a visual signal (as a system of green, yellow, and red lights) for controlling traffic

More from Merriam-Webster on traffic light

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