taillight

noun

tail·​light ˈtāl-ˌlīt How to pronounce taillight (audio)
: a usually red warning light mounted at the rear of a vehicle

called also taillamp

Examples of taillight in a Sentence

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.
Make your vehicle visible to others both ahead of you and behind you by using your low-beam headlights since this means your taillights will also be on. Nc Weather Bot, Charlotte Observer, 26 Apr. 2026 The man in question, Dale Gossett, was captured on police body camera in a red pickup truck during a routine traffic stop in Tinley Park last November for having a nonworking taillight. Dave Savini, CBS News, 20 Apr. 2026 The Tennessee Highway Patrol, which leads the task force’s traffic enforcement efforts, usually initiates the traffic stops — often for minor violations such as a broken taillight or windows tinted too dark. Wendi C. Thomas, MLK50, 17 Apr. 2026 The Tennessee Highway Patrol, which leads the task force’s traffic enforcement efforts, usually initiates the traffic stops — often for minor violations such as a broken taillight or windows tinted too dark. Wendi C. Thomas, ProPublica, 15 Apr. 2026 See All Example Sentences for taillight

Word History

First Known Use

1844, in the meaning defined above

Time Traveler
The first known use of taillight was in 1844

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Cite this Entry

“Taillight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/taillight. Accessed 30 Apr. 2026.

Kids Definition

taillight

noun
tail·​light ˈtā(ə)l-ˌlīt How to pronounce taillight (audio)
: a red warning light mounted at the rear of a vehicle

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