woodwind vs flute

woodwind and flute both are nouns.

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

As nouns, flute is a hyponym of woodwind; that is, flute is a word with a more specific, narrower meaning than woodwind:

woodwind: any wind instrument other than the brass instruments
flute: a high-pitched woodwind instrument; a slender tube closed at one end with finger holes on one end and an opening near the closed end across which the breath is blown

Other hyponyms of woodwind include beating-reed instrument, reed, reed instrument, transverse flute.

woodwind (noun)	flute (noun)
any wind instrument other than the brass instruments	a high-pitched woodwind instrument; a slender tube closed at one end with finger holes on one end and an opening near the closed end across which the breath is blown
	a groove or furrow in cloth etc (particularly a shallow concave groove on the shaft of a column)
	a tall narrow wineglass

woodwind (verb)	flute (verb)
	form flutes in