national leader vs Menachem Begin

national leader and Menachem Begin both are nouns.

Word	Noun	Adjective	Verb	Adverb
national leader	Yes	No	No	No
Menachem Begin	Yes	No	No	No

national leader (noun)	Menachem Begin (noun)
a person who is a respected leader in national or international affairs	Israeli statesman (born in Russia) who (as prime minister of Israel) negotiated a peace treaty with Anwar Sadat (then the president of Egypt) (1913-1992)