national leader vs solon

national leader and solon both are nouns.

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

As nouns, national leader and solon are synonyms defined as:

national leader and solon: a person who is a respected leader in national or international affairs

national leader (noun)	solon (noun)
a person who is a respected leader in national or international affairs	a person who is a respected leader in national or international affairs