1. The act of announcing.
2. An announcement; a proclamation.
3. Annunciation Christianity.
   1. The angel Gabriel's announcement to the Virgin Mary of the Incarnation.
   2. The feast celebrating this event.
   3. March 25, the day on which this feast is observed.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.