proponent

noun pro·po·nent \prə-ˈpō-nənt, ˈprō-ˌ\

: a person who argues for or supports something

Full Definition of PROPONENT

: one who argues in favor of something : advocate

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Latin proponent-, proponens, present participle of proponere

First Known Use: 1588

Synonyms: advocate, advocator, apostle, backer, booster, champion, expounder, espouser, friend, gospeler (or gospeller), herald, hierophant, high priest, paladin, promoter, exponent, protagonist, supporter, true believer, tub-thumper, white knight

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