young gun

British

noun

an up-and-coming young man, esp one considered as being assertive and confident

"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

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young gun

If you are looking for a young gun to take the game by storm, David Ford could be your man.

From BBC ● Jan. 6, 2026

That still leaves a chasm at the top with young gun Sam Konstas and the more experienced Matt Renshaw seen as leading the race.

From Barron's ● Oct. 15, 2025

But do not cry for the former young gun.

From Seattle Times ● Dec. 10, 2023

In the early 1950s, a cohort of ambitious young gun capitalists in the United States saw opportunity in Europe’s war trash.

From Slate ● Nov. 22, 2023

Querrey advanced to the quarter-finals of the Queen’s Club Championship this month and defeated Australian young gun Nick Kyrgios in straight sets at The Boodles this week.

From Reuters ● Jun. 29, 2018

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023