conductor

noun

1. the person who leads a musical group

Similar word(s): director

Definition categories: person, musician

2. a substance that readily conducts e.g. electricity and heat

Definition categories: substance, material, stuff

3. the person who collects fares on a public conveyance

Definition categories: person, accumulator, collector, gatherer

4. a device designed to transmit electricity, heat, etc.

Definition categories: man–made, device