<p><strong>Noun</strong></p><ul><li>a person who puts forward a proposition or proposal.</li><li>a person who argues in favor of something; an advocate.</li><li>Synonyms: enthusiast, champion, supporter</li><li>a person who supports a cause or doctrine; adherent.</li><li>Synonyms: enthusiast, champion, supporter</li><li>a person who propounds a legal instrument, such as a will for probate.</li></ul>