• synonyms


[pruh-poh-nuh nt]
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  1. a person who puts forward a proposition or proposal.
  2. a person who argues in favor of something; an advocate.
  3. a personwho supports a cause or doctrine; adherent.
  4. a person who propounds a legal instrument, such as a will for probate.
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Origin of proponent

First recorded in 1580–90, proponent is from the Latin word prōpōnent- (stem of prōpōnēns). See propone, -ent
Can be confusedantagonist proponent protagonist


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2, 3. supporter, champion, enthusiast.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for proponent


  1. a person who argues in favour of something
  2. law a person who seeks probate of a will
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Word Origin

C16: from Latin prōpōnere to propose
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for proponent


1580s, "one who brings forth a proposition or argument," from Latin proponentem (nominative proponens), present participle of proponere "put forward" (see propound). In part also a native formation from propone. As an adjective from 1680s.

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Online Etymology Dictionary, © 2010 Douglas Harper