Ideographic: A drill 丵 making a hole 凵Radical:

meaning for záo:

  • - chisel
  • - to bore a hole
  • - to chisel or dig
  • - (literary) (bound form) certain
  • - authentic
  • - irrefutable
  • - also pr. definite
  • - conclusive
  • - undeniable
  • - authentic
  • - also pr. [que4 zuo4]to cut (a canal, tunnel, well etc)to speak on good grounds (idiom)to bore a hole
  • - to give a forced interpretationchisel