traffic light

noun

: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The city of Gary also received $2 million from NIPSCO for streetlight replacement, which the city plans to use for traffic light repair. Maya Wilkins, Chicago Tribune, 8 Apr. 2026 Mathis said cars pick up speed because for three blocks there are no traffic lights or stop signs. Joe Holden, CBS News, 6 Apr. 2026 Outside, the street was now clogged with driverless cars, their high beams on, in confusion, in paralysis, lacking any traffic lights to tell them what to do. Catherine Lacey, New Yorker, 5 Apr. 2026 The town lost its one traffic light when Okeechobee Road was widened in the late 1970s. Miami Herald Archives, Miami Herald, 5 Apr. 2026 See All Example Sentences for traffic light

Word History

First Known Use

1912, in the meaning defined above

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

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Cite this Entry

“Traffic light.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/traffic%20light. Accessed 9 Apr. 2026.

Kids Definition

traffic light

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

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