chinook wind vs current of air

chinook wind and current of air both are nouns.

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

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

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

Other hypernyms of chinook wind include air current, wind.

chinook wind (noun)	current of air (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