: 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
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
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Nc Weather Bot, Charlotte Observer, 17 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.
—Ca Weather Bot, Sacbee.com, 17 Sep. 2025
Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights.
—Bay Area Weather Report, Mercury News, 16 Sep. 2025
This gave credence to the defense’s theory that police tampered with the evidence, including the busted taillight, pieces of which were later found at the crime scene, at 34 Fairview Road.
—Lance Reynolds, Boston Herald, 13 Sep. 2025
See All Example Sentences for taillight
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Nc Weather Bot, Charlotte Observer, 17 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.
—Ca Weather Bot, Sacbee.com, 17 Sep. 2025
Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights.
—Bay Area Weather Report, Mercury News, 16 Sep. 2025
This gave credence to the defense’s theory that police tampered with the evidence, including the busted taillight, pieces of which were later found at the crime scene, at 34 Fairview Road.
—Lance Reynolds, Boston Herald, 13 Sep. 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 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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