Chairman
Chairperson, Speaker
noun
The person in charge of long discussions is the chairman, or the speaker. They also say who gets to talk and for how long.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
議長、今日の議題は何ですか？
Mr. Chairman, what is today's agenda?
その議長は、いつも皆の意見を公平に聞いてくれます。
That chairman always listens to everyone's opinions fairly.
今、2024年の最初のFOMCでのパウエル議長の会見のビデオを見ているところです。
I am just now watching the video of Chairman Powell's press conference at the first FOMC meeting of 2024.