Brown Driver Briggs

 1. to stone (to death), put to death by stoning
  1) (Qal) to pelt with stones, stone to death
  2) (Niphal) to be stoned to death
  3) (Piel)
1c1. to stone, pelt with stones
1c2. to free from stones (of vineyard, highway)
  4) (Pual) to be stoned to death