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first blood

British  

noun

  1. the first killing or wounding in a fight or war

  2. the first damage or reverse inflicted on an opponent in a conflict

"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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According to the researchers, this indicates that the first blood cells likely emerged around the same time multicellular animals first appeared on Earth.

From Science Daily ● May 27, 2026

Yesavage, 22, was named on Thursday to start game one as the Blue Jays look to draw first blood against the defending Major League Baseball champions in the best-of-seven series.

From Barron's ● Oct. 23, 2025

The Springboks drew first blood and, given it was so early, it was a grim beginning for Scotland.

From BBC ● Nov. 10, 2024

Williams had drawn first blood with a right-footed shot from the center of the box five minutes earlier.

From Los Angeles Times ● Nov. 11, 2023

Beyond his tree, as he slept, the first blood light of dawn was rising up the sky.

From "The Killer Angels: The Classic Novel of the Civil War" by Michael Shaara

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