1. To inflict a punishment or penalty in return for; revenge: avenge a murder. 2. To take vengeance on behalf of: avenged their wronged parents.
v. 1. To inflict punishment in return for (injury or insult). 2. To seek or take vengeance for (oneself or another person); avenge. n. 1. The act of taking vengeance for injuries or wrongs; retaliation. 2. Something done in vengeance; a retaliatory measure. 3. A desire for revenge; spite or vindictiveness. 4. An opportunity to retaliate, as by a return sports match after a defeat.
Revenge is a kind of wild justice, which the more a man’s nature runs to, the more ought law to weed it out —Francis Bacon