Saint Bruno vs St. Bruno

Saint Bruno and St. Bruno both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saint Bruno	Yes	No	No	No
St. Bruno	Yes	No	No	No

As nouns, Saint Bruno and St. Bruno are synonyms defined as:

Saint Bruno and St. Bruno: (Roman Catholic Church) a French cleric (born in Germany) who founded the Carthusian order in 1084 (1032-1101)

Other synonyms of Saint Bruno include Bruno, Bruno of Cologne.

Saint Bruno (noun)	St. Bruno (noun)
(Roman Catholic Church) a French cleric (born in Germany) who founded the Carthusian order in 1084 (1032-1101)	(Roman Catholic Church) a French cleric (born in Germany) who founded the Carthusian order in 1084 (1032-1101)