: 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
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.
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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
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 10 Apr. 2026
Another driver who avoided the CR-V told investigators that neither its taillights nor hazards were working at the time.
—Josh Funk, Fortune, 1 Apr. 2026
See All Example Sentences for taillight
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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
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 10 Apr. 2026
Another driver who avoided the CR-V told investigators that neither its taillights nor hazards were working at the time.
—Josh Funk, Fortune, 1 Apr. 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 21 Apr. 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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