Mother of Jesus; known as the (Blessed) Virgin Mary, or St. Mary, or Our Lady. According to the Gospels, she was a virgin betrothed to Joseph and conceived Jesus by the power of the Holy Spirit. She has been venerated by Catholic and Orthodox Churches from earliest Christian times. Feast days, January 1 (Roman Catholic Church), March 25 (Annunciation), August 15 (Assumption), September 8 (Nativity), December 8 (Immaculate Conception).
Entry from British & World English dictionary