Meaning of “lights-out” in the English Dictionary

british dictionary

"lights-out" in British English

See all translations

lights-outnoun [ U ]

uk /ˌlaɪtsˈaʊt/ us /ˌlaɪtsˈaʊt/

(at a school where children live or in the army) the time in the evening when the lights are switched off in the room where people sleep:

No talking after lights-out!

(Definition of “lights-out” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)