lights-out

/ˈlaɪtsaʊt/
/ˈlaɪtsaʊt/
IPA guide

Definitions of lights-out
  1. noun
    a prescribed bedtime
    see moresee less
    type of:
    bedtime
    the time you go to bed
  2. noun
    (military) signal to turn the lights out
    synonyms: taps
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    type of:
    bugle call
    a signal broadcast by the sound of a bugle
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