资料来源 : Webster's Revised Unabridged Dictionary (1913)

   {On one's own hook}, on one's own account or responsibility;
      by one's self. [Colloq. U.S.] --Bartlett.

   {To go off the hooks}, to die. [Colloq.] --Thackeray.

   {Bid hook}, a small boat hook.

   {Chain hook}. See under {Chain}.

   {Deck hook}, a horizontal knee or frame, in the bow of a
      ship, on which the forward part of the deck rests.

   {Hook and eye}, one of the small wire hooks and loops for
      fastening together the opposite edges of a garment, etc.
      

   {Hook bill} (Zo["o]l.), the strongly curved beak of a bird.
      

   {Hook ladder}, a ladder with hooks at the end by which it can
      be suspended, as from the top of a wall.

   {Hook motion} (Steam Engin.), a valve gear which is reversed
      by V hooks.

   {Hook squid}, any squid which has the arms furnished with
      hooks, instead of suckers, as in the genera
      {Enoploteuthis} and {Onychteuthis}.

   {Hook wrench}, a wrench or spanner, having a hook at the end,
      instead of a jaw, for turning a bolthead, nut, or
      coupling.

资料来源 : WordNet®

hook wrench
     n : a wrench with a hook that fits over a nut or bolt head [syn:
          {hook spanner}]