座長|ざちょうzachou[0]heiban (flat)

1. nounchairman
2. nounleader of a troupe; proprietor of a theatrical company

• Synonym議長ぎちょうNeutralChair or chairperson of a parliament or meeting, as in 「国会議長」; leans toward formal parliamentary settings, while 「座長」 is a panel moderator or troupe leader.
• SynonymチェアマンNeutralLoanword for the head or chairman of a company, group, or league, as in 「Jリーグチェアマン」; 「座長」 is a panel moderator or troupe leader.
• Related主宰しゅさいNeutralWritten/formal word for running a group or the person who runs it, as in 「劇団を主宰する」; stresses leading the group.
• Related委員長いいんちょうNeutralChairperson of a committee, or a class president, as in 「学級委員長」; tied to committees, unlike 「座長」.
• Related主宰者しゅさいしゃNeutralWritten/formal term for a group's presiding figure or person in charge; stresses being the group's leader.
• Antonym座員ざいんNeutralA member of a theatrical troupe; the opposite of 「座長」, the troupe's leader.

「座長」 is for a panel or symposium moderator or a troupe leader, as in 「座長を務める」; 「議長」 chairs a parliament or meeting, 「委員長」 a committee. 「主宰」「主宰者」 are written words for leading a group, 「チェアマン」 for company or league heads. 「座員」 is the opposite: a troupe member.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 劇団げきだん、演芸えんげいなどの一座いちざの頭あたま。
2. 座談会ざだんかいなどの進行しんこうを取り仕切とりしきる者もの。