To taxi also refers to the actions of an aircraft moving itself around on the ground. Specifically, using its own propulsion to maneuver around in order to reach a destination also on the ground. Aircraft will taxi from a terminal or ramp area to the runway on which they intend to take off; they will, after landing, taxi from the runway to their ultimate parking spot. Aircraft being towed are not taxiing, nor are aircraft which are accelerating across the ground in order to take off or which have just touched down and are still braking from flying speed. Typically, once an aircraft has either released its brakes after landing, or turned off the runway it has landed on, it is considered to be taxiing.