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Synonyms

big gun

American  

noun

Slang.
  1. an influential or important person or thing.

    He's a big gun in science.


big gun British  

noun

  1. informal an important or influential person

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

For just one example, see next term’s big gun case, which asks whether the Second Amendment prevents the government from disarming people who are under a restraining order for domestic violence.

From Slate • Aug. 31, 2023

If this appeal to latinidad still doesn’t work, Caruso brings out the big gun for his Spanish-language commercial on crime: a guy who sounds just like the Dodgers’ Hall of Fame broadcaster Jaime Jarrín.

From Los Angeles Times • May 5, 2022

“At this moment, Mr. Upshur had his hand on the president’s arm and said, ‘Come Mr. Tyler, let’s go up and see the big gun fired,’ ” a correspondent for the New York Sun reported.

From Washington Post • Feb. 14, 2022

I fired a 155 howitzer, this big gun on wheels.

From The Guardian • Jul. 18, 2020

“That’s the big gun, but it stinks to high heaven. Best to keep that container sealed tight,” she said.

From "Hope Springs" by Jaime Berry

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