black out something Meaning in the Cambridge English Dictionary
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Meaning of “black out something” in the English Dictionary

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black out something

phrasal verb with black verb

black out something (NO LIGHT)

to have a ​failure in the ​supply of ​electricity, causing a ​loss of ​lights: The ​powerfailure blacked out all of ​northern Illinois. If you black out something, you ​prevent it from being ​seen: On my ​copy, they blacked all the ​names out so I couldn’t ​read them.
(Definition of black out something from the Cambridge Academic Content Dictionary © Cambridge University Press)
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having male and female students being taught together in the same school or college rather than separately

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