pro·​po·​nent | \ prə-ˈpō-nənt How to pronounce proponent (audio) , ˈprō-ˌpō-\

Definition of proponent

: one who argues in favor of something : advocate

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Did You Know?

Proponent comes from the same Latin word as propose, so a proponent is someone who proposes something, or at least supports it by speaking and writing in favor of it. Thus, for example, proponents of casinos argue that they create jobs, whereas proponents of a casino ban—that is, casino opponents—argue that they're corrupting and they take money away from people who can't afford it. As a rule, just about anything important that gets proposed also gets opposed.

Examples of proponent in a Sentence

a vocal proponent of the use of electric-powered cars

Recent Examples on the Web

Any decision ultimately rests with the venture’s co-founder and chief executive officer, Adam Neumann, who maintains voting control through a three-class share structure and has been an adamant proponent of the IPO, the people said. Fortune, "WeWork’s Latest Idea to Save Its Troubled IPO: Major Governance Changes," 11 Sep. 2019 Byrne is also a vocal proponent of blockchain technology and cryptocurrency. Reuters, The Mercury News, "Overstock chief Byrne resigns after Russian probe link," 22 Aug. 2019 Among those on the list are Ocasio-Cortez, the freshman congresswoman from New York City who has been an outspoken proponent of unions and worker rights. Dallas News, "Ocasio-Cortez among 27 East Coast lawmakers wading into American Airlines' dispute with mechanics," 20 Aug. 2019 Mill has become a vocal proponent for criminal justice reform. NBC News, "Rapper Meek Mill asks appeals court to overturn 2008 drug and gun conviction," 16 July 2019 Farwell has long been a vocal proponent of the NHL’s arrival here being more a benefit to the junior game than a detractor that will steal fans away. Geoff Baker, The Seattle Times, "With NHL’s arrival looming, Seattle Thunderbirds, Everett Silvertips in local junior hockey golden era," 10 Apr. 2019 While carving out a place herself on the big screen, Debicki has also become an outspoken proponent of the #metoo movement, using her platform to open up the discussion around gender inequity and inclusivity in Hollywood. Vogue, "Elizabeth Debicki Is Redefining the Look of Australian Cool," 20 Mar. 2019 Christy Joy, the controller for Schuylkill County and president of the Pennsylvania State Association of County Controllers, is an ardent proponent of fraud hotlines. Vinny Vella,, "Delaware County never had a fraud hotline. Its new controller changed that," 7 June 2018 August is the deadline for placing measures on the November ballot, offering a short time line for proponents of the tax to make their case. Steve Vockrodt, Mara Rose Williams And Katy Bergen, kansascity, "Sly James, Chamber want sales tax hike to expand pre-K in KCMO, but questions remain," 11 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'proponent.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of proponent

1588, in the meaning defined above

History and Etymology for proponent

Latin proponent-, proponens, present participle of proponere

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Statistics for proponent

Last Updated

15 Sep 2019

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Time Traveler for proponent

The first known use of proponent was in 1588

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More Definitions for proponent



English Language Learners Definition of proponent

: a person who argues for or supports something


pro·​po·​nent | \ prə-ˈpō-nənt How to pronounce proponent (audio) \

Legal Definition of proponent

1 : one who argues in favor of something
2 : one who offers a will for probate

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Comments on proponent

What made you want to look up proponent? Please tell us where you read or heard it (including the quote, if possible).


readily or continually undergoing change

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