Meaning of the word lights-out in English

What does lights-out mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

lights-out

US /ˈlaɪts.aʊt/
UK /ˈlaɪts.aʊt/
"lights-out" picture

Noun

1.

the time when lights are to be extinguished, especially in a military camp or dormitory

Example:
At lights-out, all soldiers must be in their bunks.
The warden announced lights-out at 10 PM.
2.

a knockout in boxing or other combat sports

Example:
The boxer delivered a powerful punch, resulting in a lights-out victory.
One more hit and it's lights-out for him.

Adjective

1.

causing a knockout or rendering someone unconscious

Example:
He delivered a lights-out punch to his opponent.
The drug had a lights-out effect, putting him to sleep instantly.
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