WordNet sense 1 ((voodooism) a spirit or supernatural force that reanimates a dead body):

zombi, zombie spirit, zombi spirit

WordNet sense 2 (a god of voodoo cults of African origin worshipped especially in West Indies):

snake god

WordNet sense 3 (a dead body that has been brought back to life by a supernatural force):

living dead

WordNet sense 4 (someone who acts or responds in a mechanical or apathetic way):

automaton