haunch vs rump

haunch and rump both are nouns.

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

As nouns, rump is a hypernym of haunch; that is, rump is a word with a broader meaning than haunch:

Other hypernyms of haunch include croup, croupe, hindquarters.

haunch (noun)	rump (noun)
the loin and leg of a quadruped	the part of an animal that corresponds to the human buttocks
the hip and buttock and upper thigh in human beings	the fleshy part of the human body that you sit on
	fleshy hindquarters; behind the loin and above the round