Black Muslim vs Nation of Islam

Black Muslim and Nation of Islam both are nouns.

Word	Noun	Adjective	Verb	Adverb
Black Muslim	Yes	No	No	No
Nation of Islam	Yes	No	No	No

Black Muslim (noun)	Nation of Islam (noun)
an activist member of a largely American group of Blacks called the Nation of Islam	a group of militant Black Americans who profess Islamic religious beliefs and advocate independence for Black Americans