woodwind instrument vs woodwind

woodwind instrument and woodwind both are nouns.

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

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

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

Other synonyms of woodwind instrument include wood.

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