dildo vs adult toy

dildo and adult toy both are nouns.

Word	Noun	Adjective	Verb	Adverb
dildo	Yes	No	No	No
adult toy	Yes	No	No	No

As nouns, adult toy is a hypernym of dildo; that is, adult toy is a word with a broader meaning than dildo:

dildo: a vibrating device that substitutes for an erect penis to provide vaginal stimulation
adult toy: A sex toy is an object or device that is primarily used to facilitate human sexual pleasure, such as a dildo or vibrator.

Other hypernyms of dildo include vibrator, sex toy.

dildo (noun)	adult toy (noun)
a vibrating device that substitutes for an erect penis to provide vaginal stimulation	A sex toy is an object or device that is primarily used to facilitate human sexual pleasure, such as a dildo or vibrator.