English noun: lights-out | |||
1. | lights-out (time) a prescribed bedtime | ||
Broader (hypernym) | bedtime | ||
Part meronym | dark, night, nighttime | ||
2. | lights-out (communication) (military) signal to turn the lights out | ||
Synonyms | taps | ||
Broader (hypernym) | bugle call | ||
Domain category | armed forces, armed services, military, military machine, war machine | ||