dowser vs rhabdomancer

dowser and rhabdomancer both are nouns.

Word	Noun	Adjective	Verb	Adverb
dowser	Yes	No	No	No
rhabdomancer	Yes	No	No	No

As nouns, dowser and rhabdomancer are synonyms defined as:

dowser and rhabdomancer: someone who uses a divining rod to find underground water

Other synonyms of dowser include water witch.

dowser (noun)	rhabdomancer (noun)
forked stick that is said to dip down to indicate underground water or oil	someone who uses a divining rod to find underground water
someone who uses a divining rod to find underground water