Pilot
Part of speech: adjective
Definition: Made or used as a test or demonstration of capability. (pilot run, pilot plant) Used to control or activate another device. (pilot light) Used to indicate operation ("pilot lamp")
Part of speech: noun
Definition: A person who steers a ship, a helmsman. A person who knows well the depths and currents of a harbor or coastal area, who is hired by a vessel to help navigate the harbor or coast. A guide or escort through an unknown or dangerous area. A person who is in charge of the controls of an aircraft. A sample episode of a proposed TV series
Part of speech: verb
Definition: To control (an aircraft or watercraft). To guide (a vessel) through coastal waters. To test or have a preliminary trial of (an idea, a new product, etc.)
Example sentence: Airline pilots are men to be admired and respected. Men to be trusted. Men of means. And you don't expect an airline pilot to be a local resident. Or a check swindler.
Original
Part of speech: adjective
Definition: First in a series or copies/versionsNewly createdFresh, differentPioneeringHaving as its origin
Part of speech: noun
Definition: An object or other creation (e.g. narrative work) from which all later copies and variations are derivedA person with a unique and interesting personality and/or creative talentAn eccentric
Example sentence: English is necessary as at present original works of science are in English. I believe that in two decades times original works of science will start coming out in our languages. Then we can move over like the Japanese.