vulcanized fiber vs fabric

vulcanized fiber and fabric both are nouns.

Word	Noun	Adjective	Verb	Adverb
vulcanized fiber	Yes	No	No	No
fabric	Yes	No	No	No

As nouns, fabric is a hypernym of vulcanized fiber; that is, fabric is a word with a broader meaning than vulcanized fiber:

vulcanized fiber: a leatherlike material made by compressing layers of paper or cloth
fabric: artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers

Other hypernyms of vulcanized fiber include cloth, material, textile.

vulcanized fiber (noun)	fabric (noun)
a leatherlike material made by compressing layers of paper or cloth	artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
	the underlying structure