Islam vs Caaba

Islam and Caaba both are nouns.

Word	Noun	Adjective	Verb	Adverb
Islam	Yes	No	No	No
Caaba	Yes	No	No	No

Islam (noun)	Caaba (noun)
the monotheistic religious system of Muslims founded in Arabia in the 7th century and based on the teachings of Muhammad as laid down in the Koran	(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
the civilization of Muslims collectively which is governed by the Muslim religion