: 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, 31 Jan. 2026
As the vehicle pulls away, Pretti kicks and breaks one of its rear taillights.
—Jeanine Santucci, USA Today, 30 Jan. 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Bay Area Weather Report, Mercury News, 30 Jan. 2026
As the vehicle pulls slowly away, Pretti kicks at the taillight and then delivers a second kick that shatters the red plastic and leaves the taillight dangling.
—Michael Biesecker, Fortune, 29 Jan. 2026
See All Example Sentences for taillight
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Ca Weather Bot, Sacbee.com, 31 Jan. 2026
As the vehicle pulls away, Pretti kicks and breaks one of its rear taillights.
—Jeanine Santucci, USA Today, 30 Jan. 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Bay Area Weather Report, Mercury News, 30 Jan. 2026
As the vehicle pulls slowly away, Pretti kicks at the taillight and then delivers a second kick that shatters the red plastic and leaves the taillight dangling.
—Michael Biesecker, Fortune, 29 Jan. 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 3 Feb. 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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