chinook wind vs air current

chinook wind and air current both are nouns.

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

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

chinook wind: a warm dry wind blowing down the eastern slopes of the Rockies
air current: air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure

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

chinook wind (noun)	air current (noun)
a warm dry wind blowing down the eastern slopes of the Rockies	air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure