magician vs performer

magician and performer both are nouns.

Word	Noun	Adjective	Verb	Adverb
magician	Yes	No	No	No
performer	Yes	No	No	No

As nouns, performer is a hypernym of magician; that is, performer is a word with a broader meaning than magician:

magician: someone who performs magic tricks to amuse an audience
performer: an entertainer who performs a dramatic or musical work for an audience

Other hypernyms of magician include performing artist.

magician (noun)	performer (noun)
one who practices magic or sorcery	an entertainer who performs a dramatic or musical work for an audience
someone who performs magic tricks to amuse an audience