stigmatist vs someone

stigmatist and someone both are nouns.

Word	Noun	Adjective	Verb	Adverb
stigmatist	Yes	No	No	No
someone	Yes	No	No	No

As nouns, someone is a hypernym of stigmatist; that is, someone is a word with a broader meaning than stigmatist:

stigmatist: a person whose body is marked by religious stigmata (such as marks resembling the wounds of the crucified Christ)
someone: a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

Other hypernyms of stigmatist include individual, mortal, person, somebody, soul.

stigmatist (noun)	someone (noun)
a person whose body is marked by religious stigmata (such as marks resembling the wounds of the crucified Christ)	a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential