khamsin vs current of air

khamsin and current of air both are nouns.

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

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

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

Other hypernyms of khamsin include air current, wind.

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