Definitions
1.nounA 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.noun(nautical,uncountable) The concept of a sail or sails, as if a substance."Take in sail: a storm is coming."
3.nounThe power harnessed by a sail or sails, or the use of this power for travel or transport.
4.nounA trip in a boat, especially a sailboat."Let's go for a sail."
5.noun(plural "sail") A sailing vessel; a vessel of any kind; a craft."Twenty sail were in sight."
6.nounThe blade of a windmill.
7.nounA tower-like structure found on the dorsal (topside) surface of submarines.
8.nounThe floating organ of siphonophores, such as the Portuguese man-of-war.
9.nounA sailfish."We caught three sails today."
10.nounAn outward projection of the spine, occurring in certain dinosaurs and synapsids
11.nounAnything resembling a sail, such as a wing.