boreas vs north wind

boreas and north wind both are nouns.

Word	Noun	Adjective	Verb	Adverb
boreas	Yes	No	No	No
north wind	Yes	No	No	No

As nouns, boreas and north wind are synonyms defined as:

Other synonyms of boreas include norther, northerly.

boreas (noun)	north wind (noun)
a wind that blows from the north	a wind that blows from the north