The chairperson or presiding officer of a meeting or assembly; the person who leads and keeps order during proceedings.
議長は会議の開始を宣言した。
The chair declared the start of the meeting.
議長の判断で討論が中断された。
The debate was suspended at the chair's discretion.
議長は公平に発言時間を配分した。
The chair allocated speaking time fairly.