velvet vs fabric

velvet and fabric both are nouns.

Word	Noun	Adjective	Verb	Adverb
velvet	Yes	Yes	No	No
fabric	Yes	No	No	No

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

velvet: a silky densely piled fabric with a plain back
fabric: artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers

Other hypernyms of velvet include cloth, material, textile.

velvet (noun)	fabric (noun)
a silky densely piled fabric with a plain back	artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
	the underlying structure

velvet (adjective)	fabric (adjective)
smooth and soft to sight or hearing or touch or taste
resembling velvet in having a smooth soft surface