noun
prosecutor
PRAH-sih-kyoo-ter/ˈprɑːsɪkjuːtər/
A lawyer who brings criminal cases on behalf of the government.
The prosecutor presents evidence against the defendant in court.

Etymology
A prosecutor was originally someone who followed through on or pursued a purpose. That broad idea narrowed to someone who pursues a case in court, giving the title its legal meaning.
In context
I was a prosecutor for five years.
More examples
- The prosecutor asks the witness what she saw.
- Prosecutors must prove the defendant's guilt beyond a reasonable doubt.
- The prosecutor drops the charges after reviewing new evidence.
Forms
prosecutor · prosecutors
prosecute verb — Bring a criminal case against someone.
prosecution noun — The act of pursuing a criminal case.
Similar words
- district attorney
- A local government official who typically leads a prosecution office.
- attorney
- A broader term for lawyers, including those defending clients.