Paddles are a type of boat propulsion device used in various water sports. SCULLS, which is a 6 letter word, is a type of paddle with two blades at the end of a single handle. Propels, which is a 7 letter word, is an action that causes something to move forward or onward. Spanks, which is also a 6 letter word, is a type of paddle with a single blade at the end of a long handle. ROWS, which is a 4 letter word, is the act of propelling a boat using OARS. OARS, which is also a 4 letter word, are long poles with flat blades at one end used for rowing.