telepathist vs magician

telepathist and magician both are nouns.

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

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

telepathist: a magician who seems to discern the thoughts of another person (usually by clever signals from an accomplice)
magician: someone who performs magic tricks to amuse an audience

Other hypernyms of telepathist include conjurer, conjuror, illusionist, prestidigitator.

telepathist (noun)	magician (noun)
someone with the power of communicating thoughts directly	one who practices magic or sorcery
a magician who seems to discern the thoughts of another person (usually by clever signals from an accomplice)	someone who performs magic tricks to amuse an audience