reformer
//rɪˈfɔːmər//
Noun
reformerSingular
reformersPlural
1
A person who advocates or works for social, political, or religious change and improvement.
The reformer dedicated her life to improving education for all children.
2
A leader or supporter of the Protestant Reformation in the 16th century.
Martin Luther was one of the most influential reformers of the Protestant Reformation.