pelt vs animal skin

pelt and animal skin both are nouns.

Word	Noun	Adjective	Verb	Adverb
pelt	Yes	No	Yes	No
animal skin	Yes	No	No	No

As nouns, animal skin is a hypernym of pelt; that is, animal skin is a word with a broader meaning than pelt:

pelt (noun)	animal skin (noun)
body covering of a living animal	the outer covering of an animal
the dressed hairy coat of a mammal

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