high voltage adjective 2noun 1forms 3 adjective2 •Pertaining to such a voltage; designed to carry or operate at high voltage. •(figurative) Extremely intense; highly-charged. noun1 •Voltage that is higher than the standard or usual voltage, especially when considered to be dangerous.What’s this? “Extremely High Voltage”. Well, I don’t need safety gloves because I’m Homer Simp-*gets zapped to death* formshigh voltages · more high voltage · most high voltage