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.
Still, Drury said, make sure to drive it in the rain, too, before buying it to see whether there are any leaky seals or foggy headlights or taillights. Jamie L. Lareau, Freep.com, 10 Sep. 2025 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. Kansas City Star Weather Bot, Kansas City Star, 6 Sep. 2025 Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights. Nc Weather Bot, Charlotte Observer, 5 Sep. 2025 Volkswagen updated the 2025 Jetta GLI with a new grille, LED headlights, and light bars that connect across both the front grille and rear taillights. ArsTechnica, 27 Aug. 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 11 Sep. 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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