spiritism vs spiritualism

spiritism and spiritualism both are nouns.

Word	Noun	Adjective	Verb	Adverb
spiritism	Yes	No	No	No
spiritualism	Yes	No	No	No

As nouns, spiritism and spiritualism are synonyms defined as:

Other synonyms of spiritism include otherworldliness, spirituality.

spiritism (noun)	spiritualism (noun)
concern with things of the spirit	concern with things of the spirit
	the belief that the spirits of dead people can communicate with people who are still alive (especially via a medium)
	(theology) any doctrine that asserts the separate existence of God