proponent
Americannoun
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a person who puts forward a proposition or proposal.
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a person who argues in favor of something; an advocate.
- Synonyms:
- enthusiast, champion, supporter
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a person who supports a cause or doctrine; adherent.
- Synonyms:
- enthusiast, champion, supporter
-
a person who propounds a legal instrument, such as a will for probate.
noun
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a person who argues in favour of something
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law a person who seeks probate of a will
Etymology
Origin of proponent
First recorded in 1580–90, proponent is from the Latin word prōpōnent- (stem of prōpōnēns ). See propone, -ent
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A proponent of nuclear negotiations, Larijani supported the landmark 2015 nuclear deal with world powers which unravelled three years later after Trump withdrew the US from the accord.
From Barron's • Feb. 25, 2026
Elon Musk’s Department of Government Efficiency was a major proponent of AI adoption in government.
From Salon • Feb. 2, 2026
Kennedy is also, fittingly for his family’s reputation for being full of robust outdoorsmen, a big proponent of getting outside into the woods—advice being made dangerous by the ticks.
From Slate • Dec. 19, 2025
Last year, for example, he sided with Elon Musk, a staunch proponent of the H-1B work visa program typically used by foreign professionals in fields such as engineering, technology and medicine.
From The Wall Street Journal • Nov. 25, 2025
My mother had been a big proponent of live Christmas trees.
From "The Miseducation of Cameron Post" by emily m. danforth
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
