generator vs oscillator

generator and oscillator both are nouns.

Word	Noun	Adjective	Verb	Adverb
generator	Yes	No	No	No
oscillator	Yes	No	No	No

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

generator: an electronic device for producing a signal voltage
oscillator: generator that produces sonic oscillations or alternating current

Other hyponyms of generator include pulse generator.

generator (noun)	oscillator (noun)
engine that converts mechanical energy into electrical energy by electromagnetic induction	generator that produces sonic oscillations or alternating current
an apparatus that produces a vapor or gas
an electronic device for producing a signal voltage
someone who originates or causes or initiates something