: 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, 29 Oct. 2025
Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights.
—Southern California Weather Report, Oc Register, 29 Oct. 2025
This gave credence to the defense’s theory that police tampered with evidence, including the busted taillight, pieces of which were later found at the crime scene.
—Rick Sobey, Boston Herald, 27 Oct. 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.
—Star-Telegram Weather Bot, Fort Worth Star-Telegram, 26 Oct. 2025
See All Example Sentences for taillight
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Ca Weather Bot, Sacbee.com, 29 Oct. 2025
Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights.
—Southern California Weather Report, Oc Register, 29 Oct. 2025
This gave credence to the defense’s theory that police tampered with evidence, including the busted taillight, pieces of which were later found at the crime scene.
—Rick Sobey, Boston Herald, 27 Oct. 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.
—Star-Telegram Weather Bot, Fort Worth Star-Telegram, 26 Oct. 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 31 Oct. 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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