Virgin Mary vs Blessed Virgin

Virgin Mary and Blessed Virgin both are nouns.

Word	Noun	Adjective	Verb	Adverb
Virgin Mary	Yes	No	No	No
Blessed Virgin	Yes	No	No	No

As nouns, Virgin Mary and Blessed Virgin are synonyms defined as:

Virgin Mary and Blessed Virgin: the mother of Jesus; Christians refer to her as the Virgin Mary; she is especially honored by Roman Catholics

Other synonyms of Virgin Mary include Madonna, Mary, The Virgin.

Virgin Mary (noun)	Blessed Virgin (noun)
a Bloody Mary made without alcohol	the mother of Jesus; Christians refer to her as the Virgin Mary; she is especially honored by Roman Catholics
the mother of Jesus; Christians refer to her as the Virgin Mary; she is especially honored by Roman Catholics