: 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
As the piece was about to air, Pelley said, that the segment had featured shots of protesters being aggressive in confrontations with officers, including Pretti, who was shown kicking out a taillight of a police car.
—
Ted Johnson, Deadline, 7 June 2026
It’s meant to improve visibility on dark trails, while the taillight is designed to alert others to your location.
—Utkarsh Sood
june 07, New Atlas, 7 June 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 3 June 2026
Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights.
—Bay Area Weather Report, Mercury News, 2 June 2026
See All Example Sentences for taillight
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Ted Johnson, Deadline, 7 June 2026
It’s meant to improve visibility on dark trails, while the taillight is designed to alert others to your location.
—Utkarsh Sood
june 07, New Atlas, 7 June 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 3 June 2026
Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights.
—Bay Area Weather Report, Mercury News, 2 June 2026
See All Example Sentences for taillight
Cite this Entry
“Taillight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/taillight. Accessed 9 Jun. 2026.
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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