Islam Nation vs Muslim Ummah

Islam Nation and Muslim Ummah both are nouns.

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

As nouns, Islam Nation and Muslim Ummah are synonyms defined as:

Islam Nation and Muslim Ummah: the Muslim community or people, considered to extend from Mauritania to Pakistan

Other synonyms of Islam Nation include Islamic Ummah, Umma, Ummah.

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