(of a device) Having its own source of power, or a named source.

simple past tense and past participle of power

present participle of power

(mathematics) Indicating an exponent.

(idiomatic) The holders of power or the authorities in a given situation, especially if seen as being faceless or unreasonably bureaucratic.

Alternative spelling of willpower

(politics) Currently ruling; being the present controlling authority, as of a government or country.

(plural only) Alternative spelling of powers that be

A button of a computer, a video game console, or similar device, that when pressed, causes the device to be either shut down or powered up.

A surname.