a metallic conductor that is attached to a high point and leads to the ground; protects the building from destruction by lightning
abrupt electric discharge from cloud to cloud or from cloud to earth accompanied by the emission of light
the person who leads a musical group
the flash of light that accompanies an electric discharge in the atmosphere (or something resembling such a flash); can scintillate for a second or more
a substance that readily conducts e.g. electricity and heat
the person who collects fares on a public conveyance
a device designed to transmit electricity, heat, etc.