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

Signature issues Castro has been a vocal proponent of immigration reform and improving housing affordability. Dan Sweeney,, "Who are the Democratic presidential candidates in the Miami debates?," 26 June 2019 True, proponents said all the right things in mid-June when announcing the winner of a design competition to create a more cohesive district around the Detroit Institute of Arts. John Gallagher, Detroit Free Press, "New cultural district plan still has long way to go to unify DIA neighborhood," 25 June 2019 The arguments for pushing the state’s last-call hour to 4 a.m. boil down to a mix of economic and prestige factors as proponents say cities are losing out on valuable tourism and convention dollars by closing early. Jared Weber, USA TODAY, "Last call at 4? California could extend bar hours in LA, San Francisco and other cities," 20 June 2019 But proponents say the segregation charge is especially off base, since many charter schools were deliberately created to expand students' choices in cities where public schools had long been effectively segregated. NBC News, "Unchartered territory: 2020 Democrats back away from charter schools," 9 June 2019 Abbott was a vocal proponent of a school finance overhaul and caps on property tax growth -- both of which were passed. Dallas News, "Poll: Texas voters support Gov. Greg Abbott, Roe v. Wade and protecting LGBT people," 6 June 2019 Before the vote, council members heard from several proponents and opponents. Barbara Henry, San Diego Union-Tribune, "Encinitas gives initial approval to gas-powered, leaf-blower ban," 20 June 2019 The denial is also conspicuous because Ashrawi has been a fixture in the Palestinian establishment and a proponent of the two-state solution long championed by the United States. Ishaan Tharoor, Washington Post, "Trump sees Mideast peace. Others see a ‘racist, colonial mentality.’," 19 June 2019 Secretary of State Mike Pompeo is expected to meet this week with the European Union’s foreign policy chief, Federica Mogherini, a leading deal proponent. Matthew Lee,, "Iran, US fan the flames of conflict over nuclear deal," 18 June 2019

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

7 Jul 2019

Look-up Popularity

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).


appealing forcibly to the mind or reason

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