Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun lights-out

2 senses of lights-out

Sense 1
lights-out -- (a prescribed bedtime)
       => bedtime -- (the time you go to bed)

Sense 2
taps, lights-out -- ((military) signal to turn the lights out)
       => bugle call -- (a signal broadcast by the sound of a bugle)