reformer

noun

re·​form·​er ri-ˈfȯr-mər 

1

: one that works for or urges reform

2

Reformer : a leader of the Protestant Reformation

3

: an apparatus for cracking oils or gases to form specialized products

Examples of reformer in a Sentence

Recent Examples on the Web

Pinpointing precisely who might be Cuba’s reformer who would be willing to work with the United States to dismantle the communist system and rebuild the country has proved elusive. —Nora Gámez Torres, Miami Herald, 21 Jan. 2026

Circuit training and power reformer for high-energy days. —Jackie Snow, Los Angeles Times, 14 Jan. 2026

President Franklin Roosevelt, while a reformer domestically, was relatively cautious in foreign affairs until World War II. —Arthur I. Cyr, Chicago Tribune, 14 Jan. 2026

But the mayor's control over the independent corporation was a key part of the vision of early education reformers like the pro-charter nonprofit The Mind Trust, whose 2011 report House Bill 1423 appears to mimic. —Marissa Meador, IndyStar, 13 Jan. 2026

Word History

First Known Use

1526, in the meaning defined at sense 1

Phrases Containing reformer

• counter-reformer

Rhymes for reformer

• conformer
• informer
• performer
• transformer
• dormer
• former
• warmer

Kids Definition

reformer

noun

re·​form·​er ri-ˈfȯr-mər 

: one that works for reform