1
: a light with a reflector and special lens mounted on the front of a vehicle to illuminate the road ahead
also
: the beam cast by a headlight
2
: a light worn on the forehead (as of a miner or physician)
Examples of headlight in a Sentence
Recent Examples on the Web
The only thing Doel needed to install was a DC-DC converter to output 12 volts to power the headlights, wipers, horn and other auxiliary systems.
—
Ryan Brennan
march 6, Kansas City Star, 6 Mar. 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 6 Mar. 2026
Switch on headlights - Even during daylight hours, using headlights can enhance visibility and signal your presence to other drivers.
—Star-Telegram Weather Bot, Fort Worth Star-Telegram, 5 Mar. 2026
Take the cross headlights, for instance.
—New Atlas, 5 Mar. 2026
See All Example Sentences for headlight
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Ryan Brennan
march 6, Kansas City Star, 6 Mar. 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 6 Mar. 2026
Switch on headlights - Even during daylight hours, using headlights can enhance visibility and signal your presence to other drivers.
—Star-Telegram Weather Bot, Fort Worth Star-Telegram, 5 Mar. 2026
Take the cross headlights, for instance.
—New Atlas, 5 Mar. 2026
See All Example Sentences for headlight
Cite this Entry
“Headlight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/headlight. Accessed 10 Mar. 2026.
Copy CitationKids Definition
headlight
noun
head·light
ˈhed-ˌlīt 
: a light on the front of a vehicle
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