pyromancy vs fortune telling

pyromancy and fortune telling both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyromancy	Yes	No	No	No
fortune telling	Yes	No	No	No

As nouns, fortune telling is a hypernym of pyromancy; that is, fortune telling is a word with a broader meaning than pyromancy:

pyromancy: divination by fire or flames
fortune telling: the art or gift of prophecy (or the pretense of prophecy) by supernatural means

Other hypernyms of pyromancy include divination, foretelling, soothsaying.

pyromancy (noun)	fortune telling (noun)
divination by fire or flames	the art or gift of prophecy (or the pretense of prophecy) by supernatural means