Umma vs Islam Nation

Umma and Islam Nation both are nouns.

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

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

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

Other synonyms of Umma include Islamic Ummah, Muslim Ummah, Ummah.

Umma (noun)	Islam Nation (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