deceased person vs dead soul

deceased person and dead soul both are nouns.

Word	Noun	Adjective	Verb	Adverb
deceased person	Yes	No	No	No
dead soul	Yes	No	No	No

As nouns, deceased person and dead soul are synonyms defined as:

Other synonyms of deceased person include dead person, deceased, decedent, departed.

deceased person (noun)	dead soul (noun)
someone who is no longer alive	someone who is no longer alive