nylon vs man-made fiber

nylon and man-made fiber both are nouns.

Word	Noun	Adjective	Verb	Adverb
nylon	Yes	No	No	No
man-made fiber	Yes	No	No	No

As nouns, man-made fiber is a hypernym of nylon; that is, man-made fiber is a word with a broader meaning than nylon:

nylon: a thermoplastic polyamide; a family of strong resilient synthetic fibers
man-made fiber: fiber created from natural materials or by chemical processes

Other hypernyms of nylon include synthetic fiber, polyamide, polymeric amide.

nylon (noun)	man-made fiber (noun)
a group of synthetic fabrics, known generically as aliphatic polyamides	fiber created from natural materials or by chemical processes
a thermoplastic polyamide; a family of strong resilient synthetic fibers