national leader vs Chesterfield

national leader and Chesterfield both are nouns.

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

national leader (noun)	Chesterfield (noun)
a person who is a respected leader in national or international affairs	suave and witty English statesman remembered mostly for letters to his son (1694-1773)