Brown Driver Briggs

 1. to tear, tear in pieces
  1) (Qal)
1a1. to tear, rend
1a2. to tear away or out
1a3. to tear, rend asunder
1a  1) to make wide or large (of eyes)
1a  2) to rend open (of heavens)
1a4. to tear, rend (of wild beasts)
  2) (Niphal) to be rent, be split asunder