crusader vs reformer

crusader and reformer both are nouns.

Word	Noun	Adjective	Verb	Adverb
crusader	Yes	No	No	No
reformer	Yes	No	No	No

As nouns, crusader and reformer are synonyms defined as:

Other synonyms of crusader include meliorist, reformist, social reformer.

crusader (noun)	reformer (noun)
a disputant who advocates reform	an apparatus that reforms the molecular structure of hydrocarbons to produce richer fuel
	a disputant who advocates reform