propounder

/prəˈpaʊndər/
noun
  1. A person who puts forward an idea, theory, or plan for consideration.
    • Historians often study the propounders of major political ideas to understand their impact.
    • The propounder of the new teaching method gave a lecture to hundreds of educators.
    • As the propounder of the peace plan, she worked hard to get both sides to agree.
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