taxi /ˈtæksi/noun 4verb 2forms 6 noun4 •a car that anyone can hire for a single trip, with someone to drive itI cabbed a package downtown in my father's taxi. •(South-Africa) Synonym of shared taxi. •The movement of an aircraft across an airport's surface under its own power; a phase of aircraft operation involving this movement.During taxi, the flaps and slats are extended and the second engine (if not already running) is started.Seat belts must be kept fastened during taxi, takeoff, turbulence, and landing. •(slang, no longer used) An aircraft used for practicing ground manoeuvres.Capt. Dawes and Bellairs were out with the Deperdussin taxi, and also with the brevet machine, rolling. — 1912 verb2 •To travel by taxicab.[H]e had taxied to the waterfront bent upon a business in which nostalgia had no part[.] — 1932 •To move an aircraft on the ground under its own power. formstaxied · taxiing · taxying · taxies · taxis · taxies