grapnel
/ˈɡræpnəl/
noun
- A small anchor with several hooks or claws, used for dragging or grappling things, especially underwater.
- Using a grapnel, the divers searched the riverbed for the sunken treasure.
- The rescue team lowered a grapnel to snag the rope from the water.
- The sailor threw a grapnel over the side to retrieve the lost fishing net.