chair
US /tʃer/
UK /tʃer/

1.
2.
the person who presides over a meeting, committee, or organization
:
•
The chair of the committee called the meeting to order.
•
She was elected as the new chair of the department.
1.
to preside over (a meeting, committee, or organization)
:
•
She will chair the next board meeting.
•
He was asked to chair the discussion on climate change.