crusader Meaning, Definition & Usage

  1. noun a disputant who advocates reform
    reformer; meliorist; reformist; social reformer.
  2. noun a warrior who engages in a holy war
    • the Crusaders tried to recapture the Holy Land from the Muslims

WordNet

Cru*sad"er noun
Definitions
  1. One engaged in a crusade; as, the crusaders of the Middle Ages.
    Azure-eyed and golden-haired, Forth the young crusaders fared. Longfellow.

Webster 1913