Sail

Sail

A sail is a tensile structure, which is made from fabric or other membrane materials, that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails may be made from a combination of woven materials—including canvas or polyester cloth, laminated membranes or bonded filaments, usually in a three- or four-sided shape.

sail

Noun

1. A piece of fabric attached to a boat and arranged such that it causes the wind to drive the boat along. The sail may be attached to the boat via a combination of mast, spars and ropes.
2. The concept of a sail or sails, as if a substance.

Verb

1. To be impelled or driven forward by the action of wind upon sails, as a ship on water; to be impelled on a body of water by steam or other power.
2. To move through or on the water; to swim, as a fish or a waterfowl.