conductor conductor

noun

( ) the person who leads a musical group  ( conductor, director, music director )
the person who leads a musical group

( ) the person who collects fares on a public conveyance  ( conductor )
the person who collects fares on a public conveyance

( ) a substance that readily conducts e.g. electricity and heat  ( conductor )
a substance that readily conducts e.g. electricity and heat

a device designed to transmit electricity, heat, etc.  ( conductor )
a device designed to transmit electricity, heat, etc.