One who takes vengeance; an avenger.

an avenger (of some wrong).

An avenger. Now poetic or rhetorical.

An avenger.

He who takes vengeance on, or punishes (the offender). Cf. avenge, v. 3. Obsolete.

A person who takes revenge; an avenger.

Usually in form Nemesis. Originally in classical mythology: the goddess of retribution or vengeance, who reverses excessive good fortune, checks…

Usually with capital initial. An avenging demon or god. More generally: any avenger of wrongs committed; an agent of retribution. Cf. nemesis, n. 1.

One who vindicates, in various senses of the verb.

A provider of retribution (in various senses); esp. a person or god who exacts retributive justice.