internuncio vs diplomat

internuncio and diplomat both are nouns.

Word	Noun	Adjective	Verb	Adverb
internuncio	Yes	No	No	No
diplomat	Yes	No	No	No

As nouns, diplomat is a hypernym of internuncio; that is, diplomat is a word with a broader meaning than internuncio:

internuncio: (Roman Catholic Church) a diplomatic representative of the Pope ranking below a nuncio
diplomat: an official engaged in international negotiations

Other hypernyms of internuncio include diplomatist.

internuncio (noun)	diplomat (noun)
(Roman Catholic Church) a diplomatic representative of the Pope ranking below a nuncio	an official engaged in international negotiations
	a person who deals tactfully with others