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

Caaba(ProperNoun)

The small and nearly cubical stone building, holiest place of Islam, that all Muslims face when praying.

Caaba(noun)

the small and nearly cubical stone building, toward which all Mohammedans must pray