traffic signal

noun

: a signal (such as a traffic light) for controlling traffic

Examples of traffic signal in a Sentence

Recent Examples on the Web
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Bus rapid transit systems, which are set up throughout California, offer shorter travel times than regular buses through features like dedicated lanes and traffic signal priority. — Madison Smalstig, Sacbee.com, 30 Oct. 2026 As thousands of residents lost power and traffic signals went dark, Waymo robotaxis recorded nearly 1,600 stoppages lasting at least two minutes, blocking traffic and contributing to widespread gridlock. — Encyclopedia Britannica, 29 Oct. 2026 The work is part of a broader effort to eliminate traffic signals along Texas 71 between Austin and Houston and is expected to be completed in fall 2028. — Dante Motley, Austin American Statesman, 29 Oct. 2026 Could have been no lights, no traffic signals, real problems. — Terrence O'Brien, The Verge, 23 Oct. 2026 See All Example Sentences for traffic signal

Word History

First Known Use

1893, in the meaning defined above

Time Traveler
The first known use of traffic signal was in 1893

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Cite this Entry

“Traffic signal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/traffic%20signal. Accessed 3 Nov. 2026.

Kids Definition

traffic signal

noun
: a signal (as a traffic light) for controlling traffic

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