Meaning of “aggressor” in the English Dictionary

british dictionary

"aggressor" in British English

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aggressornoun [ C ]

uk /əˈɡres.ər/ us /əˈɡres.ɚ/


  • It is said that, as a rule, the aggressors are victorious, for rarely do they attack an enemy that is too strongly entrenched.
  • It was the aggressors themselves that were now under cross fire, and they relished it very little.
  • The chances are that the aggressor would come off worst.
  • The natives find that they are men like themselves, and that their intrusion is an injury, and they perhaps become the aggressors in provoking hostilities.
  • The result was a duel, in which the aggressor was wounded.

(Definition of “aggressor” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"aggressor" in American English

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aggressornoun [ C ]

us /əˈɡres·ər/

a person, group, or country that starts an argument, fight, or war by attacking first:

He claimed that he was just defending himself, and that the other guy was the aggressor.

(Definition of “aggressor” from the Cambridge Academic Content Dictionary © Cambridge University Press)