Islam Nation vs Umma

Islam Nation and Umma both are nouns.

Word	Noun	Adjective	Verb	Adverb
Islam Nation	Yes	No	No	No
Umma	Yes	No	No	No

As nouns, Islam Nation and Umma are synonyms defined as:

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

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

Islam Nation (noun)	Umma (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