traffic light


Definition of 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 defendant in that case, Kelsey McFoley, 28, faced a long prison sentence for allegedly pulling a gun on Cruz-Echevarria at a traffic light, the station reported. Robert Gearty, Fox News, "Army vet's killing leads to arrest of 3 in murder-for-hire plot," 7 Sep. 2018 Some will follow pedestrian signals, some will obey traffic lights, and some will do none of the above. Umair Irfan, Vox, "Electric scooters’ sudden invasion of American cities, explained," 7 Sep. 2018 Privacy watchdogs have questioned who will control sensitive digital information as residents are tracked by sensors that may be embedded in such infrastructure as traffic lights, thermostats and garbage-disposal units. Jacquie Mcnish, WSJ, "Local Resistance Builds to Google’s ‘Smart City’ in Toronto," 1 Aug. 2018 Plus, batteries are damaged by charging and discharging quickly — like stopping and starting at traffic lights. Angela Chen, The Verge, "Supercapacitors power the Note 9 stylus — but are they ready to replace batteries?," 17 Aug. 2018 The town has just one traffic light and few businesses — the commercial district includes a pub, a pizzeria, and a general store. Laura Crimaldi,, "Welcome to Millville, where budget fight means dark streets, no trash pickup, and a growing deficit," 11 July 2018 Tommy Thompson, traffic lights at 67th Avenue and McDowell Road, and the nearby Interstate 10 overpasses were out. Bree Burkitt, azcentral, "Car crash knocks out power, traffic lights at 67th Avenue, McDowell," 7 July 2018 Others voiced safety concerns about the entrance to the property on York Road, which as planned would not have a traffic light. Libby Solomon,, "Towson residents question plans for Towson Station, call for 'inspired commerce'," 29 June 2018 The rail line option would require fewer traffic lights and stops compared with the other options. Kenneth R. Gosselin, Courant Community, "Hartford's Union Station May Be Used By CTfastrak Under Redevelopment Plan," 9 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'traffic light.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of traffic light

1912, in the meaning defined above

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Statistics for traffic light

Last Updated

1 Dec 2018

Look-up Popularity

Time Traveler for traffic light

The first known use of traffic light was in 1912

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More Definitions for traffic light

traffic light


English Language Learners Definition of traffic light

: an electric lamp that usually has a red, a green, and a yellow light and that is used to control traffic

traffic light


Kids Definition of traffic light

: a visual signal (as a set of colored lights) for controlling the flow of vehicles

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More from Merriam-Webster on traffic light

Rhyming Dictionary: Words that rhyme with traffic light

Spanish Central: Translation of traffic light

Nglish: Translation of traffic light for Spanish Speakers

Comments on traffic light

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the figure or shape of a crescent moon

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