duster vs piece of cloth

duster and piece of cloth both are nouns.

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

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

Other hypernyms of duster include piece of material.

duster (noun)	piece of cloth (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