oboe vs double-reed instrument

oboe and double-reed instrument both are nouns.

Word	Noun	Adjective	Verb	Adverb
oboe	Yes	No	No	No
double-reed instrument	Yes	No	No	No

As nouns, double-reed instrument is a hypernym of oboe; that is, double-reed instrument is a word with a broader meaning than oboe:

oboe: a slender double-reed instrument; a woodwind with a conical bore and a double-reed mouthpiece
double-reed instrument: a woodwind that has a pair of joined reeds that vibrate together

Other hypernyms of oboe include double reed.

oboe (noun)	double-reed instrument (noun)
a slender double-reed instrument; a woodwind with a conical bore and a double-reed mouthpiece	a woodwind that has a pair of joined reeds that vibrate together