noun
commissioner
kuh-MISH-uh-ner/kəˈmɪʃənər/
An official responsible for managing or regulating an organization or activity.
The commissioner reviews city department plans with staff gathered around the desk.

Etymology
A commission was business or authority entrusted to someone. The personal ending identifies the official receiving that authority, connecting an assigned task with responsibility for overseeing an activity or department.
In context
the land commissioner manages state parks and lands manages mineral rights
More examples
- The police commissioner announces new training requirements for officers.
- The league commissioner suspends the player for three games.
- County commissioners vote on funding for road repairs.
Forms
commissioner · commissioners
commission noun — A group appointed to perform specific duties.
Similar words
- administrator
- Emphasizes managing operations rather than holding a particular official title.
- regulator
- Focuses on enforcing rules rather than managing daily operations.