pelt vs beaver fur

pelt and beaver fur both are nouns.

Word	Noun	Adjective	Verb	Adverb
pelt	Yes	No	Yes	No
beaver fur	Yes	No	No	No

As nouns, beaver fur is a hyponym of pelt; that is, beaver fur is a word with a more specific, narrower meaning than pelt:

pelt (noun)	beaver fur (noun)
body covering of a living animal	the soft brown fur of the beaver
the dressed hairy coat of a mammal

pelt (verb)	beaver fur (verb)
attack and bombard with or as if with missiles
cast, hurl, or throw repeatedly with some missile
rain heavily