blackout

noun
black*out \ ˈblak-ˌau̇t \
1913{ds||1|a|}
  • a turning off of the stage lighting to separate scenes in a play or end a play or skit; also : a skit that ends with a blackout
  • a period of darkness enforced as a precaution against air raids
  • a period of darkness (as in a city) caused by a failure of electrical power

black out

verb
black out \
1824{ds|t|1|a|}
  • blot out, erase
  • to suppress by censorship
  • to envelop in darkness
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