Word
lights-out, n.
(military) signal to turn the lights out
<noun.communication>
lights-out
taps
semantic pointers
hypernym
bugle call
domain of synset (topic)
armed forces, military, armed services, military machine, war machine
a prescribed bedtime
<noun.time>
lights-out
semantic pointers
part holonym
night, dark, nighttime
hypernym
bedtime