Ships' SPARS are the poles or MASTS that support the sails of a sailing vessel. They are typically made of wood, metal, or composite materials and are used to provide stability and direction to the ship. The term 'SPARS' is derived from the Old Norse word for pole, and the term 'MASTS' is derived from the Latin word for pole. Ships' SPARS are essential components of a sailing vessel, providing the necessary support for the sails and allowing the vessel to move through the water.