matador vs bullfighter

matador and bullfighter both are nouns.

Word	Noun	Adjective	Verb	Adverb
matador	Yes	No	No	No
bullfighter	Yes	No	No	No

As nouns, bullfighter is a hypernym of matador; that is, bullfighter is a word with a broader meaning than matador:

matador: the principal bullfighter who is appointed to make the final passes and kill the bull
bullfighter: someone who fights bulls

Other hypernyms of matador include toreador.

matador (noun)	bullfighter (noun)
the principal bullfighter who is appointed to make the final passes and kill the bull	someone who fights bulls