duster vs piece of material

duster and piece of material both are nouns.

Word	Noun	Adjective	Verb	Adverb
duster	Yes	No	No	No
piece of material	Yes	No	No	No

As nouns, piece of material is a hypernym of duster; that is, piece of material is a word with a broader meaning than duster:

Other hypernyms of duster include piece of cloth.

duster (noun)	piece of material (noun)
a pitch thrown deliberately close to the batter	a separate part consisting of fabric
a loose coverall (coat or frock) reaching down to the ankles
a piece of cloth used for dusting
a windstorm that lifts up clouds of dust or sand