headsail

English Thesaurus

1. any sail set forward of the foremast of a vessel (noun.artifact)

hypernym	:	canvas, canvass, sail, sheet,
definition	:	a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel (noun.artifact)

hyponym	:	spinnaker,
definition	:	a large and usually triangular headsail; carried by a yacht as a headsail when running before the wind (noun.artifact)