block out
Britishverb
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to plan or describe (something) in a general fashion
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to prevent the entry or consideration of (something)
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photog printing to mask part of (a negative), in order that light may not pass through it
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He makes sure they’re set up to block out as much sunlight as possible before he goes to bed.
From The Wall Street Journal ● Oct. 5, 2026
"So many Bogong moths would come through that they could block out the stars and the moon as they went overhead," said Parrott, from Zoos Victoria.
From Barron's ● Oct. 2, 2026
And in case you didn’t know, “duvateen” is the fabric they use on movie sets to completely block out the light.
From Salon ● Aug. 25, 2026
"They block out so much light that you can't see anything through them except the Sun," she told the PA news agency.
From BBC ● Aug. 11, 2026
Mr. Palmer walked half a city block out of his way to get past the wires without touching them.
From "Earthquake Terror" by Peg Kehret
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
