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.
California and Multivan drivers benefit from an improved Travel Assist system with traffic light recognition and assisted highway lane changing. New Atlas, 26 June 2026 The change in traffic light cycles was noticeable, as streams of people poured out of MARTA stations and hotels. Doug Turnbull, AJC.com, 21 June 2026 Knicks fans turn out in force Several blocks from the parade route, fans stood shoulder to shoulder — sometimes on each other’s shoulders — or climbed traffic lights and sanitation trucks. Anthony Izaguirre, Chicago Tribune, 19 June 2026 The region’s 1,100 miles of shoreline outnumber its roads and traffic lights combined. Simon Davidson, Travel + Leisure, 19 June 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

Browse Nearby Words

Cite this Entry

“Traffic light.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/traffic%20light. Accessed 4 Jul. 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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