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.
Reducing wait times at traffic lights Daniel de Visé covers personal finance for USA TODAY. Daniel De Visé, USA Today, 6 Nov. 2025 Tesla has implemented autopilot and self-driving features on its vehicles that include traffic-aware cruise control, semi-autonomous navigation, response to traffic lights and the ability to summon the car from a parking space. Rob Nikolewski, San Diego Union-Tribune, 5 Nov. 2025 Google previously updated the app to use visible objects, such as traffic lights and stop signs, when giving directions. PC Magazine, 5 Nov. 2025 The band also incorporates Tramel's giant handmade props, which include a papier-mâché 8-ball, a traffic light and big speakers. Audrey Gibbs, Nashville Tennessean, 20 Oct. 2025 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

Browse Nearby Words

Cite this Entry

“Traffic light.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/traffic%20light. Accessed 9 Nov. 2025.

Kids Definition

traffic light

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

More from Merriam-Webster on traffic light

Last Updated: - Updated example sentences
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