dust storm vs duster

dust storm and duster both are nouns.

Word	Noun	Adjective	Verb	Adverb
dust storm	Yes	No	No	No
duster	Yes	No	No	No

As nouns, dust storm and duster are synonyms defined as:

Other synonyms of dust storm include sandstorm, sirocco.

dust storm (noun)	duster (noun)
a windstorm that lifts up clouds of dust or sand	a pitch thrown deliberately close to the batter
	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