air current vs fohn

air current and fohn both are nouns.

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

As nouns, fohn is a hyponym of air current; that is, fohn 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
fohn: a warm dry wind that blows down the northern slopes of the Alps

air current (noun)	fohn (noun)
air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure	a warm dry wind that blows down the northern slopes of the Alps