plural vs Islamic Ummah

plural and Islamic Ummah both are nouns.

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

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