Definition of “blackout” - English Dictionary

(Definition of “blackout” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“blackout” in American English

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blackoutnoun [ C ]

us /ˈblæk·ɑʊt/

blackout noun [ C ] (NO ELECTRICITY)

a period of time when electric power has failed, causing a loss of lights:

A blackout ended the game early.

blackout noun [ C ] (NOT CONSCIOUS)

a short period of time when you are not conscious:

He suffers from Parkinson’s disease and has occasionally experienced blackouts.

(Definition of “blackout” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“blackout” in Business English

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blackoutnoun [ C ]

uk /ˈblækaʊt/ us

a period of time when a service, product, etc. is not available:

Pay-per-view returned after a three-year blackout.
A media blackout was imposed the day after the riots.

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(Definition of “blackout” from the Cambridge Business English Dictionary © Cambridge University Press)