St. Brigid vs Saint Brigid

St. Brigid and Saint Brigid both are nouns.

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

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

St. Brigid and Saint Brigid: Irish abbess; a patron saint of Ireland (453-523)

Other synonyms of St. Brigid include Bride, Bridget, Brigid, Brigit of Kildare, Saint Bride, Saint Bridget, St. Bride, St. Bridget.

St. Brigid (noun)	Saint Brigid (noun)
Irish abbess; a patron saint of Ireland (453-523)	Irish abbess; a patron saint of Ireland (453-523)