office bearer
/ˈɔfɪs ˌbɛrər/
noun
- A person who holds a position of authority or responsibility in an organization, committee, or club.
- The organization elected new office-bearers at the annual general meeting.
- The club's office-bearers include a president, a secretary, and a treasurer.
- As an office-bearer of the student council, she had to attend monthly meetings.