noun
searchlight
SURCH-lyt
noun
1
A powerful lamp that projects a controllable, focused beam of light, often used at night for surveillance or signalling.
"The prison's searchlight swept across the yard."
How to Use Searchlight
Learner’s notesIn plain EnglishA strong, directional light used to scan an area, typically at night.
Word Forms
searchlighted past tense, searchlit past tense, searchlights plural, searchlights singular
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The prison's _____ swept across the yard.
Etymology
From search + light.