national leader vs Benjamin Disraeli

national leader and Benjamin Disraeli both are nouns.

Word	Noun	Adjective	Verb	Adverb
national leader	Yes	No	No	No
Benjamin Disraeli	Yes	No	No	No

national leader (noun)	Benjamin Disraeli (noun)
a person who is a respected leader in national or international affairs	British statesman who as Prime Minister bought controlling interest in the Suez Canal and made Queen Victoria the empress of India (1804-1881)