high wind vs air current

high wind and air current both are nouns.

Word	Noun	Adjective	Verb	Adverb
high wind	Yes	No	No	No
air current	Yes	No	No	No

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

high wind: a very strong wind
air current: air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure

Other hypernyms of high wind include current of air, wind.

high wind (noun)	air current (noun)
a very strong wind	air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure