: 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, 1 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 Dec. 2025
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 29 Dec. 2025
She was convicted in 1977 of murder, armed robbery and other offenses stemming from a 1973 incident in which New Jersey State Troopers pulled over her and two others because their car's taillight was broken.
—Emily Blackwood, PEOPLE, 21 Dec. 2025
See All Example Sentences for taillight
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Ca Weather Bot, Sacbee.com, 1 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 Dec. 2025
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 29 Dec. 2025
She was convicted in 1977 of murder, armed robbery and other offenses stemming from a 1973 incident in which New Jersey State Troopers pulled over her and two others because their car's taillight was broken.
—Emily Blackwood, PEOPLE, 21 Dec. 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 7 Jan. 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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