From Latin prōpōnēns, present participle of prōpōnō (“to put forward; propose”).

• (Received Pronunciation) IPA^(key): /pɹəˈpəʊnənt/
• (General American) IPA^(key): /pɹəˈpoʊnənt/
• Hyphenation: pro‧po‧nent

• Audio (US):

  (file)

proponent (plural proponents)

1. One who supports something; an advocate.
   • 2012 November 2, Ken Belson, New York Times, retrieved 2 November 2012:

     Proponents of the race — notably Mayor Michael R. Bloomberg and Mary Wittenberg, director of the marathon — said the event would provide a needed morale boost, as well as an economic one.

2. One who makes a proposal or proposition.
3. (law) One who propounds a will for probate.

• exponent

• detractor
• opponent

• apropos
• propone
• propound
• propose

proponent (not comparable)

1. Making proposals; proposing.

prōpōnent

1. third-person plural future active indicative of prōpōnō