leopard vs fur

leopard and fur both are nouns.

Word	Noun	Adjective	Verb	Adverb
leopard	Yes	No	No	No
fur	Yes	No	No	No

As nouns, fur is a hypernym of leopard; that is, fur is a word with a broader meaning than leopard:

Other hypernyms of leopard include pelt.

leopard (noun)	fur (noun)
large feline of African and Asian forests usually having a tawny coat with black spots	dense coat of fine silky hairs on mammals (e.g., cat or seal or weasel)
the pelt of a leopard	a garment made of animal pelts or synthetic fur
	the dressed hairy coat of a mammal