: 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
Deputies said the off-road motorcycle was not equipped with a headlight or taillight and was not authorized for use on roadways.
—
Paula Wethington, CBS News, 18 May 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 18 May 2026
The vote requests that the department’s all-civilian watchdog adopt new guidelines similar to San Francisco, which bars police officers from pulling people over for broken taillights and other minor equipment violations unless there is a safety threat.
—Los Angeles Times, 7 May 2026
The entire design is familiar and evolutionary, yet futuristic and bold, with scattered LED daytime running lights bleeding into the front grille, sharply creased sheet metal that’s punched out at the fenders, a geometric wheel design with a star formation, and a full-width LED taillight.
—Joel Feder, The Drive, 22 Apr. 2026
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Paula Wethington, CBS News, 18 May 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 18 May 2026
The vote requests that the department’s all-civilian watchdog adopt new guidelines similar to San Francisco, which bars police officers from pulling people over for broken taillights and other minor equipment violations unless there is a safety threat.
—Los Angeles Times, 7 May 2026
The entire design is familiar and evolutionary, yet futuristic and bold, with scattered LED daytime running lights bleeding into the front grille, sharply creased sheet metal that’s punched out at the fenders, a geometric wheel design with a star formation, and a full-width LED taillight.
—Joel Feder, The Drive, 22 Apr. 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 19 May. 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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