Parafoil: invented by parachute designer Domina Jalbert in 1963, this is a kite which is based on the aerofoil wing shape and does not require any rigid frame for flight. Can also be called ram-air, wing, ram-jet, and paraglide.
Peter Lynn: a New Zealand manufacturer of kites including the ARC and various other Twinskin kites.
PFD: personal flotation device, lifejacket.
Planing: is when the board is going fast enough to skip across the surface of the water, as compared to pushing its way through the water.
Point of sail: The direction of a kiteboard or sailboat relative to the wind. When you are sailing as much toward upwind as possible, your point of sail is called close hauled. Other points of sail are called: close reach, beam reach, and broad reach.
Pointing: going in a direction as upwind as possible. A board that points well is one that goes upwind at a better angle than others (more directly into the wind).
Port: The left side of a boat, from the perspective of a person looking forward. The opposite of starboard.
Port tack: Sailing on a tack with the wind coming from the port side (left side).
Power Zone: the downwind center lower portion of the wind window where the pull is strongest... (straight downwind).
Profile: the side view of the foil or kite.
The apparent area of a kite while it is being flown, as opposed to lying flat on the ground. The amount of area that presents itself to the wind.