pro·​po·​nent | \prə-ˈpō-nənt, ˈprō-ˌpō-\

Definition of proponent 

: one who argues in favor of something : advocate

Keep scrolling for more

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

But proponents say the technology is continuing to improve dramatically. Barbara Peterson, Condé Nast Traveler, "The Future of Biometrics at the Airport," 20 Sep. 2018 Del Rio sector… has been a strong proponent of Operation Streamline [which quickly processes immigrants in the federal criminal court system]. Molly Hennessy-fiske,, "Border protection commissioner talks 'zero tolerance,' family separations and how to discourage immigration," 11 June 2018 Virginia, who was home schooled, is a strong proponent of school choice efforts as well. Paul Steinhauser, Fox News, "Mother-daughter duo running for office, hope to inspire more Republican women candidates," 9 June 2018 Though proponents argue that work requirements will spur Medicaid recipients to become self-sufficient and find work, most Medicaid recipients in Michigan are either already working or unable to work. Adam K. Raymond, Daily Intelligencer, "Michigan’s Proposed Medicaid Work Requirement Comes With a Racist Twist," 3 May 2018 Interim Kentucky Education Commissioner Wayne Lewis is a strong proponent of charter schools. Morgan Watkins, The Courier-Journal, "Bevin officials were likely after education commissioner's job last year, lawmaker says," 20 Apr. 2018 Unlike the Marie Kondo method, which is a total home/life makeover project if done to the letter, proponents of lagom suggest taking things slowly, like tackling just one cupboard at a time. Rachel Jacoby Zoldan, SELF, "The 8 Best Lessons I Learned Living the Lagom Life," 31 Oct. 2018 This particular piece of sexist legislation has drawn some proponents for change. Caroline Picard, Good Housekeeping, "Why Prince Harry and Meghan Markle's Kids Won't Be Princes or Princesses," 15 Oct. 2018 Conspicuously missing from the coverage: Any warnings of the dangers of entering the U.S. with children — the deterrent that some proponents of the family separation policy had hoped for. USA TODAY, "What's changed after Trump's immigration order: For families, for the military and for Congress," 21 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.

See More

First Known Use of proponent

1588, in the meaning defined above

History and Etymology for proponent

Latin proponent-, proponens, present participle of proponere

Keep scrolling for more

Learn More about proponent

Dictionary Entries near proponent








Statistics for proponent

Last Updated

8 Dec 2018

Look-up Popularity

Time Traveler for proponent

The first known use of proponent was in 1588

See more words from the same year

Keep scrolling for more

More Definitions for proponent



English Language Learners Definition of proponent

: a person who argues for or supports something


pro·​po·​nent | \prə-ˈpō-nənt \

Legal Definition of proponent 

1 : one who argues in favor of something

2 : one who offers a will for probate

Keep scrolling for more

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).


a nest or breeding place

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!