1. (noun)grapnel, grapple, grappler, grappling hook, grappling iron a tool consisting of several hooks for grasping and holding; often thrown with a rope Synonyms: grappling hook, grappler, clamshell, wrestling, wrestle, wrestler, hand-to-hand struggle, grappling, grapple, grappling iron, matman, grapnel anchor, grapnel
2. (noun)grapnel, grapnel anchor a light anchor for small boats Synonyms: grapnel anchor, grappling hook, grappling iron, grapple, grapnel, grappler