Foresail

A foresail is one of a few different types of sail set on the foremost mast (foremast) of a sailing vessel:

• A fore-and-aft sail set on the foremast of a schooner or similar vessel.
• The lowest square sail on the foremast of a full-rigged ship or other vessel which is square-rigged.

Sails set forward of the mainmast, such as jibs and staysails, are sometimes referred to as foresails, although "headsails" is a more common term, headsail can also specifically refer to the sail on a forestay that connects directly to the head of the mast.