English Reference
noun

auditor

n.
US /ˈɔdɪtɝ/ UK /ˈɔːdɪtɐ/ au·di·tor UK spelling auditor's, auditor's

  1. 01 B2 Upper Intermediate

    a person who checks the financial records of a company to make sure they are correct and legal.

    a professional qualified to conduct an official examination of an individual's or organisation's accounts.

    Simple

    The company hired an external auditor to check their tax records.

    In context

    The independent auditor discovered several discrepancies in the quarterly reports that the internal accounting team had overlooked.

    Usage

    Often used with 'internal' or 'external' to describe the relationship to the company.

  2. 02 C1 Advanced American English

    a student who attends a university course to learn but does not take exams or get a grade.

    a person who attends an academic course for personal interest rather than for credit or a degree.

    Simple

    He joined the history class as an auditor because he just wanted to learn.

    In context

    While the registered students were required to submit weekly essays, the auditor was permitted to simply observe the lectures and participate in discussions.

    listenerguest student
  3. 03 C2 Proficiency ArchaicLiterary

    a person who listens to something, such as a speech or a performance.

    a person who hears or listens; a member of an audience.

    Simple

    The speaker looked at his auditors to see if they understood his point.

    In context

    The poet addressed his silent auditors with a voice that carried to the very back of the hall.

    Teacher's tip

    This sense is rare in modern English; 'listener' or 'audience member' is preferred in almost all contemporary contexts.

    listenerhearer

The official added that “early signs of improvement in that situation” were visible, although the auditors did not have complete data to draw conclusions.

The Guardian· 3 Sept 2026

From Anglo-Norman auditour, from Latin audītor (“hearer, auditor”).

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

This entry
Origin Latin audītor
Level B2 · Upper Intermediate
Frequency Frequent
Updated