Definition
A forestay is a strong rope or cable that runs from the top of the foremast to the front of a ship. It's like a suspension bridge cable supporting the mast. Its main job is to support the foremast against the force of the wind in the sails. Think of it as the backbone of the foremast, preventing it from bending or breaking. Without a forestay, the foremast could collapse under heavy wind conditions. It's an essential part of a sailing vessel's rigging.