Definition of: foresail

(fôr′sāl′, -səl, fōr′-, fō′səl) noun Naut.
1. A square sail, bent to the foreyard; the lowest sail on the foremast of a square–rigged vessel.
2. The fore–and–aft sail on a schooner's foremast, set on a boom and gaff.
3. The forestaysail of a cutter or sloop.