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 campground operates strict lighting rules, including being a no-headlights zone, to keep artificial light to an absolute minimum and the stars bright overhead.
—
Megan Eaves, Outside, 20 Feb. 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 20 Feb. 2026
Using low-beam headlights, which also activate your taillights.
—Ca Weather Bot, Sacbee.com, 20 Feb. 2026
Well, the background actors look like deer in the headlights as Bobby let loose.
—Mike Fleming Jr, Deadline, 19 Feb. 2026
See All Example Sentences for headlight
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Megan Eaves, Outside, 20 Feb. 2026
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights.
—Nc Weather Bot, Charlotte Observer, 20 Feb. 2026
Using low-beam headlights, which also activate your taillights.
—Ca Weather Bot, Sacbee.com, 20 Feb. 2026
Well, the background actors look like deer in the headlights as Bobby let loose.
—Mike Fleming Jr, Deadline, 19 Feb. 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 26 Feb. 2026.
Copy CitationKids Definition
headlight
noun
head·light
ˈhed-ˌlīt 
: a light on the front of a vehicle
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