<p><strong>Noun</strong></p><ul><li>a person who conducts; a leader, guide, director, or manager.</li><li>an employee on a bus, train, or other public conveyance, who is in charge of the conveyance and its passengers, collects fares or tickets, etc.</li><li>a person who directs an orchestra or chorus, communicating a specific interpretation of the music to the performers by motions of a baton or the hands.</li><li>a substance, body, or device that readily conducts heat, electricity, sound, etc.: Copper is a good conductor of electricity.</li><li>lightning rod.</li></ul>