author vs generator

author and generator both are nouns.

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

As nouns, author and generator are synonyms defined as:

author and generator: someone who originates or causes or initiates something

Other synonyms of author include source.

author (noun)	generator (noun)
writes (books or stories or articles or the like) professionally (for pay)	engine that converts mechanical energy into electrical energy by electromagnetic induction
someone who originates or causes or initiates something	an apparatus that produces a vapor or gas
	an electronic device for producing a signal voltage
	someone who originates or causes or initiates something

author (verb)	generator (verb)
be the author of