[seyl] 
| 1. | an area of canvas or other fabric extended to the wind in such a way as to transmit the force of the wind to an assemblage of spars and rigging mounted firmly on a hull, raft, iceboat, etc., so as to drive it along. |
| 2. | some similar piece or apparatus, as the part of an arm that catches the wind on a windmill. |
| 3. | a voyage or excursion, esp. in a sailing vessel: They went for a sail around the island. |
| 4. | a sailing vessel or ship. |
| 5. | sailing vessels collectively: The fleet numbered 30 sail. |
| 6. | sails for a vessel or vessels collectively. |
| 7. | (initial capital letter ) Astronomy. the constellation Vela. |
| 8. | to move along or travel over water: steamships sailing to Lisbon. |
| 9. | to manage a sailboat, esp. for sport. |
| 10. | to begin a journey by water: We are sailing at dawn. |
| 11. | to move along in a manner suggestive of a sailing vessel: caravans sailing along. |
| 12. | to move along in a stately, effortless way: to sail into a room. |
| 13. | to sail upon, over, or through: to sail the seven seas. |
| 14. | to navigate (a vessel). |
| 15. | sail in or into, Informal.
|
| 16. | in sail, with the sails set. |
| 17. | make sail, Nautical.
|
| 18. | set sail, to start a sea voyage: We set sail at midnight for Nantucket. |
| 19. | trim one's sails, Informal. to cut expenses; economize: We're going to have to trim our sails if we stay in business. |
| 20. | under sail, with sails set; in motion; sailing: It was good to be under sail in the brisk wind and under the warm sun. |