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.
Visibility priority: Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights. Nc Weather Bot, Charlotte Observer, 12 Aug. 2025 Their family's car was vertical, the taillights in the mud. Lily Kepner, Austin American Statesman, 30 July 2025 Ensuring all golf carts are street legal, including having operational taillights, turn signals and other necessary safety features. Jake Allen, IndyStar, 26 July 2025 The other piece of evidence the prosecution and defense fought over was the condition of Read’s taillight. Ct Jones, Rolling Stone, 18 June 2025 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 19 Aug. 2025.

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

More from Merriam-Webster on taillight

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