croupe vs hindquarters

croupe and hindquarters both are nouns.

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

As nouns, croupe and hindquarters are synonyms defined as:

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

Other synonyms of croupe include croup, rump.

croupe (noun)	hindquarters (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