Dictionary.com
Thesaurus.com
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.

See Examples For:

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

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

From The Guardian Jul. 18, 2020

“I’m a big gun guy, and I’m all for background checks,” he said.

From Washington Post Aug. 9, 2019

His very big, big gun having been destroyed, along with his fleet of ships, he still manages to swagger out of the ocean, quite literally, and proclaim himself a king.

From Slate May 13, 2019

The big black thing that looked like a log turned out to be a big gun.

From "In the Footsteps of Crazy Horse" by Joseph Marshall III

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training