woodwind vs wind instrument

woodwind and wind instrument both are nouns.

Word	Noun	Adjective	Verb	Adverb
woodwind	Yes	No	No	No
wind instrument	Yes	No	No	No

As nouns, wind instrument is a hypernym of woodwind; that is, wind instrument is a word with a broader meaning than woodwind:

woodwind: any wind instrument other than the brass instruments
wind instrument: a musical instrument in which the sound is produced by an enclosed column of air that is moved by bellows or the human breath

Other hypernyms of woodwind include wind.

woodwind (noun)	wind instrument (noun)
any wind instrument other than the brass instruments	a musical instrument in which the sound is produced by an enclosed column of air that is moved by bellows or the human breath