reformer

[ ri-fawr-mer ]

/ rɪˈfɔr mər /

a person devoted to bringing about reform, as in politics or society.

(initial capital letter) any of the leaders of the Reformation.

Origin of reformer

First recorded in 1520–30; reform + -er¹

an·ti·re·form·er, noun coun·ter·re·form·er, noun

Their drop-in rate starts at $39 for all classes using the Reformer.

12 Priciest Fitness Classes (Actually Worth the Splurge) |DailyBurn |February 3, 2014 |DAILY BEAST
Then all we would need is a “reformer” willing to carry through.

Congress Can Be Corrupt Without Corrupt People |Lawrence Lessig |December 13, 2013 |DAILY BEAST
Then, they proclaimed the hawks would never let him win because he might be a moderate and a reformer.

Iran, Try Peace or Get War |Leslie H. Gelb |September 24, 2013 |DAILY BEAST
On the sex abuse front, most cardinals firmly believe that in the long run of history Benedict XVI will be recalled as a reformer.

Inside the Conclave: Finding a New Pope |John L. Allen Jr. |February 17, 2013 |DAILY BEAST

He started out as a reformer back when that word had a specific meaning.

Ed Koch |Michael Tomasky |February 1, 2013 |DAILY BEAST
Zoroaster was not their founder, but was their reformer, and the purifier of their doctrines.

Mysticism and its Results |John Delafield
The Reformer did not recoil, did not retract; but his judge, he who never ceased exclaiming, Retract!

History of the Reformation in the Sixteenth Century (Volume 1) |J. H. Merle D'Aubign
I fancy that you will end by discovering that as a reformer he must be considered just a little crude.

Books and Persons |Arnold Bennett
His controversy with the friars marks the commencement of his career as a reformer.

Cabinet Portrait Gallery of British Worthies |Anonymous
It is notorious that a reformer must not expect a life of ease and comfort.

The Life of Sir Rowland Hill, Vol. II (of 2) |Rowland Hill