commissioner

UK: /kəˈmɪʃ^ənə^r/ US: /kəˈmɪʃənɚ/ ,(kə mish′ə nər)

WordReference Random House Learner's Dictionary of American English © 2025

com•mis•sion•er /kəˈmɪʃənɚ/   n. [countable]

1. a person who is a member of a commission:
   The commissioners voted 6 to 5 in favor of the plan.
2. Government a government official in charge of a department or district:
   the police commissioner.
3. Sport an official chosen by an athletic association and given broad authority:
   the baseball commissioner.

WordReference Random House Unabridged Dictionary of American English © 2025

com•mis•sion•er  (kə mish′ə nər), n. 

1. a person commissioned to act officially;
   member of a commission.
2. Government a government official or representative in charge of a department or district:
   the police commissioner; the commissioner of a colony.
3. Sport an official chosen by an athletic association to exercise broad administrative or judicial authority:
   the baseball commissioner.

• Anglo-French. See commission, -er²
• late Middle English 1400–50

com•mis′sion•er•ship′, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

commissioner / kəˈmɪʃənə/ noun

1. a person authorized to perform certain tasks or endowed with certain powers
2. any of several types of civil servant
3. an ombudsman
   See also Parliamentary Commissioner
4. a member of a commission

comˈmissionerˌship noun