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One who argues against or attacks an idea, argument, or proposition—even if one is in favor of it—for the sake of debate or to further examine its strength, validity, or details. Refers to the "Advocatus Diaboli," a person employed by the Catholic Church to argue against the canonization of a saint (and therefore help determine if that person is truly worthy of sainthood). I'm all for universal health care, but let me be the devil's advocate for a moment. How do you propose the government fund such a massive undertaking? Tom always plays devil's advocate in any given conversation because he loves picking apart other people's arguments.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
One who argues against a cause or position either for the sake of argument or to help determine its validity. For example, My role in the campaign is to play devil's advocate to each new policy before it's introduced to the public . This term comes from the Roman Catholic Church, where advocatus diaboli (Latin for "devil's advocate") signifies an official who is appointed to present arguments against a proposed canonization or beatification. It was transferred to wider use in the mid-1700s.
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a/the devil’s ˈadvocatea person who argues against something, even though they really agree with it, just to test the arguments for it: Helen doesn’t really think that women shouldn’t go out to work. She just likes to play devil’s advocate.
Farlex Partner Idioms Dictionary © Farlex 2017