Synonyms for Voodoo (same or very similar meaning)
WordNet sense 1 (a religious cult practiced chiefly in Caribbean countries (especially Haiti); involves witchcraft and animistic deities):
voodooism, hoodooism, vodounWordNet sense 2 (a charm superstitiously believed to embody magical powers):
hoodoo, fetich, jujuFrom the ODE community, based on WordNetadd/edit