To avenge someone or something means to punish or get revenge for harm done. It's often used when thinking about past wrongs or injustices.
When people talk about avenging something, they usually mean getting back at someone who has hurt them or their family in some way. This can be in real life, like if a company is accused of doing something bad and a group wants to make sure the person responsible pays for it. But it's also common in fiction, especially in movies and books about superheroes or vigilantes – they often want to avenge their loved ones who were hurt by bad guys. Sometimes "avenge" can be used more symbolically, like if someone is fighting against an unfair system or social injustice. They might say they're avenging the people who came before them and didn't have a chance to speak out.
An act of vengeance; a revenge.
To take vengeance (for); to exact satisfaction for by punishing the injuring party; to vindicate by inflicting pain or evil on a wrongdoer.
Example: to avenge the murder of his brother
