Center on extremism

Glossary of Extremism

This database provides an overview of many of the terms most frequently used by a variety of extremist groups and movements.

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QAnon is a popular right-wing conspiracy theory centered around thousands of cryptic messages posted by a figure called "Q", who claimed to be an anonymous U.S. government official, on the 4chan and 8chan/8kun message boards beginning in... Read more

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Great Replacement / …

"The Great Replacement" conspiracy theory made significant headway into the mainstream in 2021. The theory alleges that people of color are "replacing" white people through immigration, birth rates and other economic, social and political means. While the... Read more

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ISIS stands for Islamic State of Iraq and Syria. Though it no longer holds territory in Iraq and Syria, it has persisted as an insurgent movement and seeks to reconstitute itself both in the Middle East and... Read more

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Neo-Nazis are one of the main segments of the white supremacist movement in the United States and many other countries. They revere Adolf Hitler and Nazi Germany and sometimes try to adopt Nazi principles to their own... Read more

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Goyim Defense League

The Goyim Defense League (GDL) is a loose network of individuals connected by their virulent antisemitism. GDL attracts a range of antisemites and white supremacists who are best known for their antisemitic stunts and schemes to troll... Read more

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New World Order

"New World Order" is a term used to refer to longstanding right-wing conspiracy theories about a socialist or communist one world government. These conspiracies have been popular for decades, but this term became particularly popular among anti-government... Read more

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Latest Terms

Payton Gendron

Payton Gendron is the accused gunman in the Buffalo, NY shooting on May 14, 2022. According to police, Gendron went to a Tops supermarket armed with an AR-15, tactical gear and a body camera to livestream the... Read more

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Buffalo shooting

The Buffalo, NY shooting took place on May 14, 2022, when a white supremacist gunman opened fire at a Tops supermarket, killing 10 people and injuring three more. Before the shooting, the gunman espoused violent racist and... Read more

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James Mason

James Mason is a Denver-based neo-Nazi and former American Nazi Party member who published Siege in 1992, a compilation of essays he wrote in the 1990's for the eponymous newsletter of the Nationalist Socialist Liberation Front. In... Read more

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Antisemitism is a belief or behavior that is hostile towards Jews just because they are Jewish. For instance, antisemitism may take the form of religious teachings that proclaim the inferiority of Jews or political efforts to isolate... Read more

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Ahmad Khan Rahimi

Ahmad Khan Rahimi (b. 1988) is an Afghan-born U.S. citizen who detonated two pipe bombs in the Chelsea neighborhood of New York City on September 17, 2016, injuring 30 people. He placed a third bomb in New... Read more

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