air current vs simoom

air current and simoom both are nouns.

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

As nouns, simoom is a hyponym of air current; that is, simoom is a word with a more specific, narrower meaning than air current:

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

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