mainsheet

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noun

(nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
• Syn:
sheet, tack, weather sheet, shroud
• Derivationally related forms:
tack (for: tack)
• Topics:
seafaring, navigation, sailing
• Hypernyms:
line
• Hyponyms:
futtock shroud
• Part Holonyms:
ship