lights out

listen to the pronunciation of lights out
English - Turkish
English - English
Third-person singular simple present indicative form of light out
turning off of lights, time when lights must be turned off
The prescribed bedtime for persons living in a boarding school or staying in a hospital

We were all expected to be in bed by lights-out.

The time at night at which artificial lights are to be turned off, a curfew or bedtime
a prescribed bedtime
the time at night when a group of people who are in a school, the army etc must put the lights out and go to sleep
lights out
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