croupe vs rump

croupe and rump both are nouns.

Word	Noun	Adjective	Verb	Adverb
croupe	Yes	No	No	No
rump	Yes	No	No	No

As nouns, croupe and rump are synonyms defined as:

croupe and rump: the part of an animal that corresponds to the human buttocks

Other synonyms of croupe include croup, hindquarters.

croupe (noun)	rump (noun)
the part of an animal that corresponds to the human buttocks	the part of an animal that corresponds to the human buttocks
	the fleshy part of the human body that you sit on
	fleshy hindquarters; behind the loin and above the round