fortuneteller vs predictor

fortuneteller and predictor both are nouns.

Word	Noun	Adjective	Verb	Adverb
fortuneteller	Yes	No	No	No
predictor	Yes	No	No	No

As nouns, predictor is a hypernym of fortuneteller; that is, predictor is a word with a broader meaning than fortuneteller:

fortuneteller: a person who foretells your personal future
predictor: someone who makes predictions of the future (usually on the basis of special knowledge)

Other hypernyms of fortuneteller include forecaster, prognosticator, soothsayer.

fortuneteller (noun)	predictor (noun)
a person who foretells your personal future	a computer for controlling antiaircraft fire that computes the position of an aircraft at the instant of a shell's arrival
	information that supports a probabilistic estimate of future events
	someone who makes predictions of the future (usually on the basis of special knowledge)