terminator vs exterminator

terminator and exterminator both are nouns.

Word	Noun	Adjective	Verb	Adverb
terminator	Yes	No	No	No
exterminator	Yes	No	No	No

As nouns, terminator and exterminator are synonyms defined as:

terminator and exterminator: someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)

Other synonyms of terminator include eradicator.

terminator (noun)	exterminator (noun)
someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)	someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)