: 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
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.
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Kansas City Star Weather Bot, Kansas City Star, 29 Aug. 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
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.
—Ca Weather Bot, Sacbee.com, 23 Aug. 2025
In a video, Infiniti teased the low-slung vehicle, revealing a swoopy profile, slim headlights, and circular taillights reminiscent of the Skyline.
—Peter Lyon, Forbes.com, 22 Aug. 2025
See All Example Sentences for taillight
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Kansas City Star Weather Bot, Kansas City Star, 29 Aug. 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
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.
—Ca Weather Bot, Sacbee.com, 23 Aug. 2025
In a video, Infiniti teased the low-slung vehicle, revealing a swoopy profile, slim headlights, and circular taillights reminiscent of the Skyline.
—Peter Lyon, Forbes.com, 22 Aug. 2025
See All Example Sentences for taillight
Cite this Entry
“Taillight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/taillight. Accessed 4 Sep. 2025.
Copy CitationKids Definition
taillight
noun
tail·light
ˈtā(ə)l-ˌlīt 
: a red warning light mounted at the rear of a vehicle
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