futtock shroud vs mainsheet

futtock shroud and mainsheet both are nouns.

Word	Noun	Adjective	Verb	Adverb
futtock shroud	Yes	No	No	No
mainsheet	Yes	No	No	No

As nouns, mainsheet is a hypernym of futtock shroud; that is, mainsheet is a word with a broader meaning than futtock shroud:

futtock shroud: shroud that is part of a ship's rigging
mainsheet: (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind

Other hypernyms of futtock shroud include sheet, shroud, tack, weather sheet.

futtock shroud (noun)	mainsheet (noun)
shroud that is part of a ship's rigging	(nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind