Annunciation, Lady Day, Annunciation Day, March 25 -- (a festival commemorating the announcement of the Incarnation by the angel Gabriel to the Virgin Mary; a quarter day in England, Wales, and Ireland)
Annunciation -- ((Christianity) the announcement to the Virgin Mary by the angel Gabriel of the incarnation of Christ)
announcement, proclamation, annunciation, declaration -- (a formal public statement; "the government made an announcement about changes in the drug war"; "a declaration of independence")