Revenge; an act of retaliation carried out in response to harm or grievance.
彼は復讐を誓い、長年計画を進めた。
He vowed revenge and spent years planning it.
復讐は新たな悲しみを生むだけだと考える人もいる。
Some people believe that revenge only creates new sorrow.
その映画は復讐劇を描いたサスペンスだ。
That movie is a suspense film depicting a revenge plot.