retaliate

Verb

• make a counterattack and return like for like, especially evil for evil
  • The Empire strikes back
    
  • The Giants struck back and won the opener
    
  • The Israeli army retaliated for the Hamas bombing
    

• take revenge for a perceived wrong
  • He wants to avenge the murder of his brother
    

Related words

• Synonyms: 
  strike back , revenge , avenge