sandstorm vs dust storm

sandstorm and dust storm both are nouns.

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

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

sandstorm and dust storm: a windstorm that lifts up clouds of dust or sand

Other synonyms of sandstorm include duster, sirocco.

sandstorm (noun)	dust storm (noun)
a windstorm that lifts up clouds of dust or sand	a windstorm that lifts up clouds of dust or sand