D defs.my
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. 1.
    One who avenges or vindicates; as, an avenger of blood.
  2. 2.
    One who takes vengeance.[Obs.]