: 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.
—
Ca Weather Bot, Sacbee.com, 14 Apr. 2025
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Southern California Weather Report, Oc Register, 10 Apr. 2025
O’Keefe’s hair was found on the vehicle’s bumper, and his DNA was on the SUV’s broken taillight, Lally told the jury.
—Tim Stelloh, NBC news, 31 Mar. 2025
Visibility priority: Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights.
—Nc Weather Bot, Charlotte Observer, 3 Apr. 2025
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Ca Weather Bot, Sacbee.com, 14 Apr. 2025
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Southern California Weather Report, Oc Register, 10 Apr. 2025
O’Keefe’s hair was found on the vehicle’s bumper, and his DNA was on the SUV’s broken taillight, Lally told the jury.
—Tim Stelloh, NBC news, 31 Mar. 2025
Visibility priority: Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights.
—Nc Weather Bot, Charlotte Observer, 3 Apr. 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 19 Apr. 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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