1) Aileron 2) Airfoil 3) Flaps 4) Rudder 5) Tailplane 1) Airfoil 2) Control surface 3) Device 4) Part of a british airways jet 5) Surface 
• (n.) A plane or arched surface for sustaining bodies by its movement through the air; a spread wing, as of a bird.
The cross-section shape of a wing taken at right angles to the wing span, Also known as the wing section or rib section 
A'ër·o·foil` noun [ Aëro- + foil .] A plane or arched surface for sustaining bodies by its movement through the air; a spread wing, as of a bird. 
An aerofoil is shaped so that air flows faster over the top than under the bottom. There is, therefore, a greater pressure below the aerofoil than above it. This difference in pressure produces the lift.The lift generated by a wing is based on the principle that the pressure in a fluid decreases as its velocity increases (Bernoulli's Principle):
A surface designed to produce an aeropdynamic force at approximately right angles to its direction of motion. Usually a wind, tailplane or fin.