English Reference
noun

supervisor

n.
US /ˈsupɝˌvaɪzɝ/ UK /sˈuːpəvˌaɪzɐ/ su·per·vi·sor UK spelling supervisor's, supervisor's

  1. 01 B2 Upper Intermediate

    a person who is in charge of a group of workers and makes sure they do their jobs well.

    an individual tasked with overseeing the daily operations and performance of a team or department.

    Simple

    If you have a problem with your schedule, you should talk to your supervisor.

    In context

    The shift supervisor is responsible for ensuring that all safety protocols are followed and that production targets are met by the end of the day.

  2. 02 C1 Advanced Academic

    a teacher or professor who helps a student with a large project or research paper.

    a faculty member who oversees a student's research, particularly for a master's thesis or doctoral dissertation.

    Simple

    My supervisor gave me some very helpful feedback on the first chapter of my thesis.

    In context

    Candidates are encouraged to meet with their research supervisor weekly to discuss data collection and any theoretical challenges encountered during the study.

  3. 03 C2 Proficiency Technical Computing

    a computer program that manages and watches other programs to make sure they keep running.

    a process or program responsible for managing the lifecycle and error-handling of other subordinate processes.

    Simple

    The supervisor automatically restarts the application if it crashes.

    In context

    In a distributed system, the supervisor node monitors the health of worker nodes and redistributes tasks if a failure is detected.

  4. 04 C1 Advanced American EnglishFormal Law

    an elected official who helps run a local county government.

    a member of a local governing body, specifically a board of supervisors in certain US jurisdictions.

    Simple

    The county supervisor voted against the new tax plan at the meeting.

    In context

    The Board of Supervisors convened to discuss the allocation of funds for the upcoming infrastructure project in the northern district.

Lawlor said the device used with Flanagan, which was subsequently used in different Garda stations, is tested every six months, while checks are also performed by trained supervisors every month.

BreakingNews.ie· 14 Aug 2026

They also lack a traditional employer contact or a supervisor who would allow for easy verification.

The Conversation· 7 Aug 2026

Attested since the 15th century C.E.; from Middle English supervisor, supervisour, supervysor, supervysour, from Latin supervīsor, from supervideō, in turn from super + videō. By surface analysis, supervise + -or.

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

This entry
Origin Latin supervīsor
Level C1 · Advanced
Frequency Frequent
Updated