'Avenged' in the Bible

For if Cain is being avenged seven times, then Lamech will be avenged 77 times."

The men of Israel were hard pressed on that day, and Saul required the army to take an oath: "Cursed is the person who eats food before evening and before I've been avenged of my enemies." So no one tasted food.

LORD our God, you answered them; you were their God who forgave them, but also avenged their evil deeds.

When he saw one of them being mistreated, he defended him and avenged the man who was being mistreated by killing the Egyptian.