voodooism vs vodoun

voodooism and vodoun both are nouns.

Word	Noun	Adjective	Verb	Adverb
voodooism	Yes	No	No	No
vodoun	Yes	No	No	No

As nouns, voodooism and vodoun are synonyms defined as:

voodooism and vodoun: a religious cult practiced chiefly in Caribbean countries (especially Haiti); involves witchcraft and animistic deities

Other synonyms of voodooism include hoodooism, voodoo.

voodooism (noun)	vodoun (noun)
a religious cult practiced chiefly in Caribbean countries (especially Haiti); involves witchcraft and animistic deities	a religious cult practiced chiefly in Caribbean countries (especially Haiti); involves witchcraft and animistic deities