grappling hook
device with multiple hooks attached to one end of a rope, generally used to temporarily secure one end of a rope, or to dredge for submerged objects
en-GB/ˈɡɹæplɪŋ ˈhʊk/
en-US/ˈɡɹæpəlɪŋ ˈhʊk/
device with multiple hooks attached to one end of a rope, generally used to temporarily secure one end of a rope, or to dredge for submerged objects