awl /ˈɔl/
  錐子,尖鑽
  Awl n.  A pointed instrument for piercing small holes, as in leather or wood; used by shoemakers, saddlers, cabinetmakers, etc. The blade is differently shaped and pointed for different uses, as in the brad awl, saddler's awl, shoemaker's awl, etc.
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  awl
       n : a pointed tool for marking surfaces or for punching small
           holes
  Awl
     an instrument only referred to in connection with the custom of
     boring the ear of a slave (Ex. 21:6; Deut. 15:17), in token of
     his volunteering perpetual service when he might be free. (Comp.
     Ps. 40:6; Isa. 50:5).