Islamic Ummah vs Muslimism

Islamic Ummah and Muslimism both are nouns.

Word	Noun	Adjective	Verb	Adverb
Islamic Ummah	Yes	No	No	No
Muslimism	Yes	No	No	No

Islamic Ummah (noun)	Muslimism (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