a person who does harm to or punishes someone who has done something bad, especially to the person’s family and friends

Russell Crowe stars as a grief-stricken avenger on the trail of his family's killers. 罗素·克劳饰演一名悲痛欲绝的复仇者，追踪杀害其家人的凶手。

He went from being her little brother to his sister’s bold avenger after her death. 在姐姐死后，他从她的弟弟变成了勇敢的复仇者。

They're both avengers of perceived injustices. 他们俩帮助未被承认的不公进行复仇。