Muslim vs Islam

Muslim and Islam both are nouns.

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

Muslim (noun)	Islam (noun)
a believer in or follower of Islam	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
	the civilization of Muslims collectively which is governed by the Muslim religion

Muslim (adjective)	Islam (adjective)
of or relating to or supporting Islamism