Written in the author’s own handwriting. / (art) Made by the artist himself or herself; authentic.

(transitive) To sign, or write one’s name or signature on a book etc / (transitive) To write something in one's own handwriting

In an automatic manner.

Native to the place where found; indigenous. / (biology, medicine) Originating where found; found where it originates.

(automotive) A suspension system that automatically adjusts front and rear ride heights to compensate for changes in axle load.

Partially automatic. / Of a firearm that automatically ejects a shell and loads the next one, but requires the trigger to be squeezed for each shot; autoloading.

(weaponry) A semi-automatic firearm, especially such a pistol. / (automotive) A semi-automatic transmission.

a book in which one collects and displays autographs

(automotive) Technologies that utilize radar, infrared and image processing to allow for a decentralized recording of the environment around the vehicle.

(uncountable) A form of government in which unlimited power is held by a single individual. / (countable) An instance of this government.