air current vs khamsin

air current and khamsin both are nouns.

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

As nouns, khamsin is a hyponym of air current; that is, khamsin 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
khamsin: an oppressively hot southerly wind from the Sahara that blows across Egypt in the spring

air current (noun)	khamsin (noun)
air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure	an oppressively hot southerly wind from the Sahara that blows across Egypt in the spring