CAABA
Kaaba, Caaba
(noun) (Islam) a black stone building in Mecca that is shaped like a cube and that is the most sacred Muslim pilgrim shrine; believed to have been given by Gabriel to Abraham; Muslims turn in its direction when praying
Source: WordNet® 3.1
Ca*a"ba, n. Etym: [Ar. ka'ban, let, a square building, fr. ka'b cube]
Definition: The small and nearly cubical stone building, toward which all
Mohammedans must pray. [Written also kaaba.]
Note: The Caaba is situated in Mecca, a city of Arabia, and contains
a famous black stone said to have been brought from heaven. Before
the time of Mohammed, the Caaba was an idolatrous temple, but it has
since been the chief sanctuary and object of pilgrimage of the
Mohammedan world.
Source: Webster’s Unabridged Dictionary 1913 Edition