prosecuting attorney vs prosecuting officer

prosecuting attorney and prosecuting officer both are nouns.

Word	Noun	Adjective	Verb	Adverb
prosecuting attorney	Yes	No	No	No
prosecuting officer	Yes	No	No	No

As nouns, prosecuting attorney and prosecuting officer are synonyms defined as:

prosecuting attorney and prosecuting officer: a government official who conducts criminal prosecutions on behalf of the state

Other synonyms of prosecuting attorney include prosecutor, public prosecutor.

prosecuting attorney (noun)	prosecuting officer (noun)
a government official who conducts criminal prosecutions on behalf of the state	a government official who conducts criminal prosecutions on behalf of the state