1. a person who campaigns vigorously for a cause or reform
2. a Christian warrior who participated in the medieval military expeditions to recover the Holy Land
Usage: historical

Examples

• She was a crusader for civil rights throughout her career.
• The environmental crusader organized protests against pollution.
• He became a crusader against corruption in local government.
• The medieval crusaders traveled to Jerusalem in the 12th century.
• Many crusaders wore crosses on their armor and clothing.
• The crusader dedicated his life to fighting social injustice.
• Historical accounts describe the hardships faced by crusaders on their journey.