holy man vs holy person

holy man and holy person both are nouns.

Word	Noun	Adjective	Verb	Adverb
holy man	Yes	No	No	No
holy person	Yes	No	No	No

As nouns, holy man and holy person are synonyms defined as:

Other synonyms of holy man include angel, saint.

holy man (noun)	holy person (noun)
person of exceptional holiness	person of exceptional holiness