converter

/kənˈvɜrtər/
noun
  1. A device or machine that changes something from one form to another.
    • A catalytic converter in a car reduces harmful exhaust emissions.
    • The digital converter allows you to watch old TV signals on a new screen.
    • I bought a voltage converter to use my hair dryer in Europe.
  2. A person or thing that changes something into a different state or form.
    • The software includes a file converter for different image formats.
    • She works as a currency converter at the airport exchange booth.
    • He is a converter of old homes into modern apartments.
  3. A device that changes electrical energy from one form to another, such as AC to DC.
    • You need a converter to charge your laptop in the car.
    • The power converter transforms alternating current to direct current.
    • The solar panel system uses an inverter converter to supply household power.