national leader vs Sadat

national leader and Sadat both are nouns.

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

national leader (noun)	Sadat (noun)
a person who is a respected leader in national or international affairs	Egyptian statesman who (as president of Egypt) negotiated a peace treaty with Menachem Begin (then prime minister of Israel) (1918-1981)