One of three ways in which you can change the attitude of an aircraft or other vehicle or organism that can move in three dimensions. Pitch involves rotating the thing on its axis that runs from left to right for lack of better terminology. Pitching an aircraft will move its nose up or down. The other two ways you can change the attitude of something is to roll and yaw it. In aircraft, pitch is induced by control surfaces called elevators, which are controlled by pushing or pulling the yoke or stick towards or away from you.