plural vs Muslim Ummah

plural and Muslim Ummah both are nouns.

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

plural (noun)	Muslim Ummah (noun)
the form of a word that is used to denote more than one	the Muslim community or people, considered to extend from Mauritania to Pakistan

plural (adjective)	Muslim Ummah (adjective)
grammatical number category referring to two or more items or units
composed of more than one member, set, or kind