crusader
noun /kruːˈseɪdə(r)/
/kruːˈseɪdər/
- a person who makes a long and determined effort to achieve something that they believe to be right or to stop something they believe to be wrong synonym campaigner
- She was a moral crusader who campaigned on a range of issues.
- crusader for something He has set himself up as a crusader for higher standards in the media.
- often Crusadera fighter in the Crusades in the Middle Ages
- In 1204 Crusaders captured Constantinople.