dowsing vs foretelling

dowsing and foretelling both are nouns.

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

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

dowsing: searching for underground water or minerals by using a dowsing rod
foretelling: the art or gift of prophecy (or the pretense of prophecy) by supernatural means

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

dowsing (noun)	foretelling (noun)
searching for underground water or minerals by using a dowsing rod	the art or gift of prophecy (or the pretense of prophecy) by supernatural means
	a statement made about the future