n. A mechanical device consisting essentially of one or more hooks or clamps, used for grasping or holding something; a grapple; a grappling-iron.n. Specifically A grappling-iron, used to seize and hold one ship to another in engagements preparatory to boarding. Also called grappling.n. A boat's anchor having from three to six flukes placed at equal distances about the end of the shank. Also grapline.n. A kind of heavy tongs used for hauling logs, stones, etc.n. A device for grasping or taking hold of something not otherwise manageable or accessible, as for gripping and recovering tools in a bored well, for raising the core left by a diamond drill, for seizing a submarine telegraph-cable which needs repairs, etc.