noun. ['ˈdroʊg'] restraint consisting of a canvas covered frame that floats behind a vessel; prevents drifting or maintains the heading into a wind.
noun. ['ˈdroʊg'] a parachute used to decelerate an object that is moving rapidly.
noun. ['ˈdroʊg'] a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind.