lights-out

• Существительное, обозначающее установленное время для отхода ко сну или военный сигнал, указывающий на необходимость выключить свет.

A noun referring to a designated time for going to bed, or a military signal indicating that lights must be turned off.

неисчисляемое

1. Prescribed bedtimeB1formal

   A designated time when lights must be turned off, typically for sleep, especially in institutions like schools or camps.

   Отбой

   • Lights-out at the summer camp is at 10 PM.
   • The dormitory enforces a strict lights-out policy.
   • After lights-out, no talking is allowed in the hallways.

   Синонимыbedtimecurfew

2. Military signalB2formal

   A signal, often a bugle call or command, indicating that all lights must be extinguished for the night.

   Отбой

   • The bugler played the lights-out call at sunset.
   • After lights-out, the soldiers were confined to their barracks.
   • The commanding officer announced lights-out over the intercom.