Entry 2 senses Webster, 1913 Avenger /əv-ĕn'-jẽr/ · A·ven·ger · IPA /əˈvɛndʒə(ɹ)/ 01 n. One who avenges or vindicates; as, an avenger of blood. 1. One who avenges or vindicates; as, an avenger of blood. 2. One who takes vengeance.[Obs.]