lights-out

noun
\ ˈlīts-ˈau̇t How to pronounce lights-out (audio) \

Definition of lights-out

1 : a command or signal for putting out lights
2 : a prescribed bedtime for persons living under discipline

First Known Use of lights-out

1868, in the meaning defined at sense 1

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Time Traveler for lights-out

Time Traveler

The first known use of lights-out was in 1868

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Statistics for lights-out

Cite this Entry

“Lights-out.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/lights-out. Accessed 6 December 2019.

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More Definitions for lights-out

lights-out

noun
How to pronounce lights-out (audio)

English Language Learners Definition of lights-out

: a time when people (such as soldiers, prisoners, or students) are required to turn out the lights and go to bed

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Rhyming Dictionary: Words that rhyme with lights-out

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very cautious or careful

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