necromancer vs sorcerer

necromancer and sorcerer both are nouns.

Word	Noun	Adjective	Verb	Adverb
necromancer	Yes	No	No	No
sorcerer	Yes	No	No	No

As nouns, necromancer and sorcerer are synonyms defined as:

Other synonyms of necromancer include magician, thaumaturge, thaumaturgist, wizard.

necromancer (noun)	sorcerer (noun)
one who practices magic or sorcery	one who practices magic or sorcery
one who practices divination by conjuring up the dead