Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun crusader

2 senses of crusader

Sense 1
reformer, reformist, crusader, social reformer, meliorist -- (a disputant who advocates reform)
       => disputant, controversialist, eristic -- (a person who disputes; who is good at or enjoys controversy)

Sense 2
Crusader -- (a warrior who engages in a holy war; "the Crusaders tried to recapture the Holy Land from the Muslims")
       => warrior -- (someone engaged in or experienced in warfare)