chairperson
🇺🇸
/ˈtʃerpɜːrsn/
🇬🇧
/ˈtʃeəpɜːsn/
the person who leads a meeting or organization
The chairperson called the meeting to order and asked everyone to sit down.
議長が会議の開始を宣言し、皆に着席を求めた。