#hook.implement  a curved or bent implement for suspending or pulling something
  supertype:  implement  instrumentation (a piece of equipment or tool) used to effect an end
  subtype:  boat_hook  buttonhook  crotchet  cup_hook  fishhook  gaff  gig.hook  meat_hook  skyhook
  part:  barb.point  a subsidiary point facing opposite from the main point that makes an arrowhead or spear hard to remove

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