rappeller vs abseiler

rappeller and abseiler both are nouns.

Word	Noun	Adjective	Verb	Adverb
rappeller	Yes	No	No	No
abseiler	Yes	No	No	No

As nouns, rappeller and abseiler are synonyms defined as:

rappeller and abseiler: a person who descends down a nearly vertical face by using a doubled rope that is wrapped around the body and attached to some high point

rappeller (noun)	abseiler (noun)
a person who descends down a nearly vertical face by using a doubled rope that is wrapped around the body and attached to some high point	a person who descends down a nearly vertical face by using a doubled rope that is wrapped around the body and attached to some high point