poplin vs fabric

poplin and fabric both are nouns.

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

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

poplin: a ribbed fabric used in clothing and upholstery
fabric: artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers

Other hypernyms of poplin include cloth, material, textile.

poplin (noun)	fabric (noun)
a ribbed fabric used in clothing and upholstery	artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
	the underlying structure