Giovanni Mastai-Ferretti vs Pope Pius IX

Giovanni Mastai-Ferretti and Pope Pius IX both are nouns.

Word	Noun	Adjective	Verb	Adverb
Giovanni Mastai-Ferretti	Yes	No	No	No
Pope Pius IX	Yes	No	No	No

As nouns, Giovanni Mastai-Ferretti and Pope Pius IX are synonyms defined as:

Giovanni Mastai-Ferretti and Pope Pius IX: Italian pope from 1846 to 1878 who in 1854 declared the dogma of the Immaculate Conception of the Virgin Mary

Other synonyms of Giovanni Mastai-Ferretti include Giovanni Maria Mastai-Ferretti, Pius IX.

Giovanni Mastai-Ferretti (noun)	Pope Pius IX (noun)
Italian pope from 1846 to 1878 who in 1854 declared the dogma of the Immaculate Conception of the Virgin Mary	Italian pope from 1846 to 1878 who in 1854 declared the dogma of the Immaculate Conception of the Virgin Mary