- 1Commissioner a member of a commission (= an official group of people who are responsible for controlling something or finding out about something) the Securities and Exchange Commissioner planning commissioners
- 2(also police commissioner) the head of a particular police force in some countries
- 3the head of a government department in some countries the agriculture/health, etc. commissioner Commissioner Rhodes was unavailable for comment. see High Commissioner
- 4an official chosen by a sports association to control it the baseball commissioner
Check pronunciation: commissioner