national leader vs Cicero

national leader and Cicero both are nouns.

Word	Noun	Adjective	Verb	Adverb
national leader	Yes	No	No	No
Cicero	Yes	No	No	No

national leader (noun)	Cicero (noun)
a person who is a respected leader in national or international affairs	a Roman statesman and orator remembered for his mastery of Latin prose (106-43 BC)