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aggressor

American  
[uh-gres-er] / əˈgrɛs ər /

noun

  1. a person, group, or nation that attacks first or initiates hostilities; an assailant or invader.


Etymology

Origin of aggressor

1670–80; < Late Latin, Latin aggred- (stem of aggredī to attack; see aggress) + -tor -tor

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.

"No pressure can justify collaborating with an aggressor," Silva wrote in an open letter addressed to Diosdado Cabello, Venezuela's powerful interior minister and a close ally of Maduro.

From Barron's • May 16, 2026

But attorneys for the county argued in court filings that it was Seitz who was actually the aggressor.

From Los Angeles Times • Feb. 27, 2026

“We have to make sure that we in Germany are not vulnerable, that we can’t be attacked and that a possible aggressor knows an attack isn’t worth it.”

From The Wall Street Journal • Feb. 12, 2026

Will then lurches into a tut-tutting recapitulation of the French army chief of staff’s public statement that his nation’s people must accept the risk of losing their children to protect France from an unnamed aggressor.

From Salon • Dec. 20, 2025

Once again, the players seemed to switch personalities as they played, with Petrosian as the aggressor.

From "Endgame" by Frank Brady

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