Annunciation (Ambrogio Lorenzetti)
WordNet
noun
(1) A formal public statement
"The government made an announcement about changes in the drug war"
"A declaration of independence"
(2) (Christianity) the announcement to the Virgin Mary by the angel Gabriel of the incarnation of Christ
(3) A festival commemorating the announcement of the Incarnation by the angel Gabriel to the Virgin Mary; a quarter day in England, Wales, and Ireland