Saint Bridget vs Brigid

Saint Bridget and Brigid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saint Bridget	Yes	No	No	No
Brigid	Yes	No	No	No

As nouns, Saint Bridget and Brigid are synonyms defined as:

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

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

Saint Bridget (noun)	Brigid (noun)
Irish abbess; a patron saint of Ireland (453-523)	Irish abbess; a patron saint of Ireland (453-523)
	Celtic goddess of fire and fertility and agriculture and household arts and wisdom; later associated with Saint Bridget