dowsing vs soothsaying

dowsing and soothsaying both are nouns.

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

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

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

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

dowsing (noun)	soothsaying (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