Pronunciation: (lē'wā"),[key] —n. 1. extra time, space, materials, or the like, within which to operate; margin: With ten minutes' leeway we can catch the train. 2. a degree of freedom of action or thought: His instructions gave us plenty of leeway. 3. Also called sag.Naut.the amount or angle of the drift of a ship to leeward from its heading.
4. Aeron.the amount a plane is blown off its normal course by cross winds.