proponent

noun

Synonyms of proponent
: one who argues in favor of something : advocate

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Nab is among the data centers’ proponents, arguing that data is the industry of the future. — Maggie Harrison Dupré, Futurism, 29 Oct. 2026 Regalado, the Miami-Dade property appraiser, has been a vocal proponent of Amendment 3. — Max Klaver, Miami Herald, 28 Oct. 2026 Some proponents of tighter regulation will accept incremental progress, while others push for more sweeping change. — Barbara A. Trish, The Conversation, 26 Oct. 2026 Jackson, a proponent of Medicare for All, wrote Maine’s law creating the Prescription Drug Affordability Board and establishing pathways to importing cheaper drugs from Canada. — Emma Specter, Vogue, 26 Oct. 2026 See All Example Sentences for proponent

Word History

Etymology

Latin proponent-, proponens, present participle of proponere

First Known Use

1588, in the meaning defined above

Time Traveler
The first known use of proponent was in 1588

Browse Nearby Words

Cite this Entry

“Proponent.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/proponent. Accessed 1 Nov. 2026.

Kids Definition

proponent

noun
pro·​po·​nent prə-ˈpō-nənt How to pronounce proponent (audio)
ˈprō-ˌpō-nənt
: one who argues in favor of something
a proponent of recycling

Legal Definition

proponent

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