national leader vs Frederick North

national leader and Frederick North both are nouns.

Word	Noun	Adjective	Verb	Adverb
national leader	Yes	No	No	No
Frederick North	Yes	No	No	No

national leader (noun)	Frederick North (noun)
a person who is a respected leader in national or international affairs	British statesman under George III whose policies led to rebellion in the American colonies (1732-1792)