English Reference
noun

prosecutor

n.
US /ˈpɹɑsɪkˌjutɝ/ UK /pɹˈɒsɪkjˌuːtɐ/ pros·e·cu·tor UK spelling prosecutors

  1. 01 C1 Advanced Formal Law

    a lawyer who represents the government in a court of law to prove someone committed a crime.

    a legal official who conducts criminal proceedings on behalf of the state or the public interest.

    Simple

    The prosecutor presented new evidence to the jury during the trial.

    In context

    The lead prosecutor argued that the defendant's financial records provided a clear motive for the alleged embezzlement.

    Usage

    The noun is countable and often used with the definite article when referring to the lead official in a specific case.

    prosecuting attorneystate attorney
    defense attorney
  2. 02 C2 Proficiency FormalTechnical Law

    the person or group that starts a legal case against someone else.

    the party who institutes a criminal or civil proceeding; may refer to a private complainant in certain legal systems.

    Simple

    In some legal systems, a private citizen can act as a prosecutor.

    In context

    The court must determine if the private prosecutor has sufficient standing to bring these charges forward without state support.

    Usage

    In modern common law, this more general sense is often replaced by 'complainant' or 'plaintiff' in civil contexts.

His lawyers are preparing to meet federal prosecutors Friday for a potential plea agreement, according to reports in US media.

BBC News· 14 Aug 2026

Prosecutors allege those actions resulted in Thompson's death.

BBC News· 13 Aug 2026

1590s, from Medieval Latin prosecutor, from prōsequor (English prosecute). By surface analysis, prosecute + -or.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin la-med -
Level C1 · Advanced
Frequency Frequent
Updated