exorcist vs Holy Order

exorcist and Holy Order both are nouns.

Word	Noun	Adjective	Verb	Adverb
exorcist	Yes	No	No	No
Holy Order	Yes	No	No	No

As nouns, Holy Order is a hypernym of exorcist; that is, Holy Order is a word with a broader meaning than exorcist:

exorcist: one of the minor orders in the unreformed Western Church but now suppressed in the Roman Catholic Church
Holy Order: (usually plural) the status or rank or office of a Christian clergyman in an ecclesiastical hierarchy

Other hypernyms of exorcist include Order.

exorcist (noun)	Holy Order (noun)
someone who practices exorcism	(usually plural) the status or rank or office of a Christian clergyman in an ecclesiastical hierarchy
one of the minor orders in the unreformed Western Church but now suppressed in the Roman Catholic Church