alpaca vs wool

alpaca and wool both are nouns.

Word	Noun	Adjective	Verb	Adverb
alpaca	Yes	No	No	No
wool	Yes	No	No	No

As nouns, wool is a hypernym of alpaca; that is, wool is a word with a broader meaning than alpaca:

alpaca: wool of the alpaca
wool: fiber sheared from animals (such as sheep) and twisted into yarn for weaving

alpaca (noun)	wool (noun)
domesticated llama with long silky fleece; believed to be a domesticated variety of the guanaco	outer coat of especially sheep and yaks
a thin glossy fabric made of the wool of the Lama pacos, or made of a rayon or cotton imitation of that wool	a fabric made from the hair of sheep
wool of the alpaca	fiber sheared from animals (such as sheep) and twisted into yarn for weaving