Simple Definition of blackout
: a period when lights are kept off or are hidden from view to guard against enemy airplane attack in a war
: a period when lights are off because of an electrical power failure
: a sudden and temporary loss of consciousness, vision, or memory
Full Definition of blackout
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 b : a period of darkness enforced as a precaution against air raids c : a period of darkness (as in a city) caused by a failure of electrical power
2 : a transient dulling or loss of vision, consciousness, or memory <an alcoholic blackout>
4 : a usually temporary loss of a radio signal
5 : the prohibition or restriction of the telecasting of a sports event
6 : a time during which a special commercial offer (as of tickets) is not valid —usually used attributively <blackout dates>
Examples of blackout in a sentence
the blackouts of World War II
She keeps flashlights and candles handy in case of a blackout.
He told his doctor he had been experiencing blackouts.
First Known Use of blackout
Rhymes with blackout
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BLACKOUT Defined for Kids
Definition of blackout for Students
1 : a period of darkness enforced as a protection against enemy attack by airplanes during a war
2 : a period of darkness caused by power failure
3 : a temporary loss of vision or consciousness
Seen and Heard
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