The language of boating hits landlubbers in their ears with the same amount of sense as would be the case if Ubangi were being tossed into the air. Starboard tacks have points but only sails have heads. A sheet is a rope, not a sail- and a rope isn't a rope, but is a line. 'Tis a strange sort of lingo and you must know at least a bit of it before you take to the high seas. Glossary Of Boating Terms