dead soul vs dead person

dead soul and dead person both are nouns.

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

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

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

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