[{"Bold_text": "noun", "List Items": ["a person or thing that expounds ,explains, or interprets:an exponent of modern theory in the arts.Synonyms: promoter , proponent , champion , supporter", "a person or thing that is a representative, advocate, type, or symbol of something:Lincoln is an exponent of American democracy.Synonyms: personification , embodiment", "Mathematics.a symbol or number placed above and after another symbol or number to denote the power to which the latter is to be raised:The exponents of the quantities xn, 2m, y4, and 35 are, respectively, n, m, 4, and 5."]}]