duster vs dustrag

duster and dustrag both are nouns.

Word	Noun	Adjective	Verb	Adverb
duster	Yes	No	No	No
dustrag	Yes	No	No	No

As nouns, duster and dustrag are synonyms defined as:

Other synonyms of duster include dustcloth.

duster (noun)	dustrag (noun)
a pitch thrown deliberately close to the batter	a piece of cloth used for dusting
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