Muslim Ummah vs Islam

Muslim Ummah and Islam both are nouns.

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

Muslim Ummah (noun)	Islam (noun)
the Muslim community or people, considered to extend from Mauritania to Pakistan	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