necromancy

1. The belief in magical spells that harness occult forces or evil spirits to produce unnatural effects in the world (synset 105987679)
   is a type of: magic, thaumaturgy - any art that invokes supernatural powers
   subtypes:

   • witchcraft, witchery - the art of sorcery
   • bewitchment, enchantment - a magical spell
   • demonism, diabolism, satanism - a belief in and reverence for devils (especially Satan)
   • obiism - belief in a kind of sorcery that originated in Africa and is practiced in the West Indies
   same as: black art, black magic, sorcery
2. Conjuring up the dead, especially for prophesying (synset 105785436)
   is a type of: divination, foretelling, fortune telling, soothsaying - the art or gift of prophecy (or the pretense of prophecy) by supernatural means

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