philhellene vs champion

philhellene and champion both are nouns.

Word	Noun	Adjective	Verb	Adverb
philhellene	Yes	Yes	No	No
champion	Yes	Yes	Yes	No

As nouns, champion is a hypernym of philhellene; that is, champion is a word with a broader meaning than philhellene:

Other hypernyms of philhellene include admirer, booster, friend, protagonist, supporter.

philhellene (noun)	champion (noun)
an admirer of Greece and everything Greek	someone who fights for a cause
	someone who has won first place in a competition
	a person who backs a politician or a team etc.
	someone who is dazzlingly skilled in any field

philhellene (adjective)	champion (adjective)
characterized by a love of Greece and Grecian things	holding first place in a contest

philhellene (verb)	champion (verb)
	protect or fight for as a champion