11 letters · 19 points in Scrabble
noun a birdhouse for pigeons
noun a niche for a funeral urn containing the ashes of the cremated dead
noun a sepulchral vault or other structure having recesses in the walls to receive cinerary urns
originBorrowed from Latin columbārium, from columba (“pigeon”) + -ārium (“place for”).
Etymology from Wiktionary, CC BY-SA 3.0