Rigging support is a term used to describe the components of a sailing vessel that provide stability and support for the sails. The topmast, which is seven letters long, is the highest point of the MAST and is used to support the sails. The SPAR, which is four letters long, is a wooden pole used to support the sails. The YARDARM, which is also seven letters long, is a horizontal beam attached to the MAST and is used to support the sails. Finally, the MAST, which is four letters long, is the vertical pole that supports the sails. Together, these components form the rigging support of a sailing vessel.