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big gun

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noun Slang.
  1. an influential or important person or thing: He's a big gun in science.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for big guns

ordnance, cannon, battery, munitions, dignitary, mogul, heavyweight, bigwig, administrator, supervisor, executive, employer, director, chief, owner, chieftain, leader, someone, figure, luminary

British Dictionary definitions for big guns

big gun

noun
  1. informal an important or influential person
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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