woodwind vs woodwind instrument

woodwind and woodwind instrument both are nouns.

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

As nouns, woodwind and woodwind instrument are synonyms defined as:

woodwind and woodwind instrument: any wind instrument other than the brass instruments

Other synonyms of woodwind include wood.

woodwind (noun)	woodwind instrument (noun)
any wind instrument other than the brass instruments	any wind instrument other than the brass instruments