pyromancy vs foretelling

pyromancy and foretelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyromancy	Yes	No	No	No
foretelling	Yes	No	No	No

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

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

Other hypernyms of pyromancy include divination, fortune telling, soothsaying.

pyromancy (noun)	foretelling (noun)
divination by fire or flames	the art or gift of prophecy (or the pretense of prophecy) by supernatural means
	a statement made about the future