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
Keep your headlights on and turn on emergency flashers to alert other drivers of your position.
—
Southern California Weather Report, Daily News, 4 May 2026
Keep your headlights on and activate emergency flashers to alert other drivers of your position.
—Bay Area Weather Report, Mercury News, 4 May 2026
Switch on headlights - Even during daylight hours, using headlights can enhance visibility and signal your presence to other drivers.
—Ca Weather Bot, Sacbee.com, 4 May 2026
Prioritize visibility Enhance your visibility in heavy rain by activating your headlights.
—Southern California Weather Report, Oc Register, 4 May 2026
See All Example Sentences for headlight
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Southern California Weather Report, Daily News, 4 May 2026
Keep your headlights on and activate emergency flashers to alert other drivers of your position.
—Bay Area Weather Report, Mercury News, 4 May 2026
Switch on headlights - Even during daylight hours, using headlights can enhance visibility and signal your presence to other drivers.
—Ca Weather Bot, Sacbee.com, 4 May 2026
Prioritize visibility Enhance your visibility in heavy rain by activating your headlights.
—Southern California Weather Report, Oc Register, 4 May 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 5 May. 2026.
Copy CitationKids Definition
headlight
noun
head·light
ˈhed-ˌlīt 
: a light on the front of a vehicle
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