partizan vs champion

partizan and champion both are nouns.

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

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

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

partizan (noun)	champion (noun)
a pike with a long tapering double-edged blade with lateral projections; 16th and 17th centuries	someone who fights for a cause
an ardent and enthusiastic supporter of some person or activity	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

partizan (adjective)	champion (adjective)
devoted to a cause or party	holding first place in a contest

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