vibrating reed vs vibrator

vibrating reed and vibrator both are nouns.

Word	Noun	Adjective	Verb	Adverb
vibrating reed	Yes	No	No	No
vibrator	Yes	No	No	No

As nouns, vibrator is a hypernym of vibrating reed; that is, vibrator is a word with a broader meaning than vibrating reed:

vibrating reed: a vibrator consisting of a thin strip of stiff material that vibrates to produce a tone when air streams over it
vibrator: a mechanical device that vibrates

vibrating reed (noun)	vibrator (noun)
a vibrator consisting of a thin strip of stiff material that vibrates to produce a tone when air streams over it	mechanical device that produces vibratory motion; used for massage
	a mechanical device that vibrates