主席・首席|しゅせきshuseki[0]heiban (flat)

1. nounhead; chief
2. nounchairman; governor; president
3. nountop student; head of the class
   恵子けいこはクラスで首席しゅせきだ。↗

   Keiko is at the head of her class.
4. nountop seat; first desk (in orchestra)

• Synonym首長しゅちょうWrittenWritten/formal: the head of an organization or agency, e.g. a governor, mayor or prime minister; 「主席」 is a specific title such as state chairman, or the top of the class.
• Synonym旗頭はたがしらNeutralLeader or standard-bearer of a faction; 「主席」 is a formal, highest-ranking post.
• SynonymチーフNeutralLoanword for a supervisor or person in charge, as in 「チーフシェフ」; 「主席」 is the highest post.
• RelatedキャプテンNeutralLoanword for a team or ship captain; 「主席」 is the top post of an organization.
• Antonym最下位さいかいNeutralOpposite of 「主席（首席）」 in ranking; means last place.
• Antonym末席まっせきWrittenWritten/formal word for the lowest seat, opposite of 「主席（首席）」 in seating order.

「主席」 is a specific top title, such as a state or party chairman (国家主席); first rank is written 「首席」, as in 「首席で卒業」. Use 「首長」 for local government heads, 「チーフ」 for a supervisor, 「キャプテン」 for a team captain; antonyms are 「最下位」 and 「末席」.

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

1. 第だい一いちの席せき、主人しゅじんの席せき。
2. 1から転てんじて、国家こっか、政党せいとうを代表だいひょうする最高さいこう責任者せきにんしゃ。国家こっか主席しゅせきは大統領だいとうりょう、国家こっか元首げんしゅに相当そうとう。党とう主席しゅせきは党首とうしゅ（党とうの議長ぎちょう、委員長いいんちょう）に当あたる。