the world > the supernatural > the occult > sorcery, witchcraft, or magic > [noun] > necromancy (9)
The art of predicting the future by supposed communication with the dead; (more generally) divination, sorcery, witchcraft, enchantment.
Conjuration of, or communication with, the spirits or souls of the dead; necromancy.
Divination through communication with the spirits of the dead; = necromancy, n.
The art or practice of necromancy. Now rare.