simoom vs air current

simoom and air current both are nouns.

Word	Noun	Adjective	Verb	Adverb
simoom	Yes	No	No	No
air current	Yes	No	No	No

As nouns, air current is a hypernym of simoom; that is, air current is a word with a broader meaning than simoom:

simoom: a violent hot sand-laden wind on the deserts of Arabia and North Africa
air current: air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure

Other hypernyms of simoom include current of air, wind.

simoom (noun)	air current (noun)
a violent hot sand-laden wind on the deserts of Arabia and North Africa	air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure