aggressor

Từ điển Oxford Advanced Learner 8th

ag·gres·sor [aggressor aggressors] BrE [əˈɡresə(r)] NAmE [əˈɡresər] noun
a person, country, etc. that attacks first
•They are seen as the aggressors in the civil war.

Word Origin:
mid 17th cent.: from late Latin, from aggredi ‘to attack’ from ad- ‘towards’ gradi ‘proceed, walk’.

• Từ đồng nghĩa / Synonyms:
  attacker, assailant, assaulter