animal fibre vs wool

animal fibre and wool both are nouns.

Word	Noun	Adjective	Verb	Adverb
animal fibre	Yes	No	No	No
wool	Yes	No	No	No

As nouns, wool is a hyponym of animal fibre; that is, wool is a word with a more specific, narrower meaning than animal fibre:

animal fibre: fiber derived from animals
wool: fiber sheared from animals (such as sheep) and twisted into yarn for weaving

Other hyponyms of animal fibre include horsehair, silk.

animal fibre (noun)	wool (noun)
fiber derived from animals	outer coat of especially sheep and yaks
	a fabric made from the hair of sheep
	fiber sheared from animals (such as sheep) and twisted into yarn for weaving