Senior - Jouseki

Japanese: 上席 - じょうせき

〘 noun 〙 (also "shoseki")① (━suru) To take a seat. ※Waruran Jiyō (1855-58) "Hij heeft in die vergadering voorgezeeten. He took the top seat in the match."② (━suru) The seat where a person of higher rank should sit. The seat of honor. Also, to take that seat. [Keio Reprint English-Japanese Bilingual Dictionary (1867)] [Nanshi - Koyanden]③ To be of higher rank, rank, or ranking. ※Essays - Sumo Konjaku Monogatari (1785) Volume 7 "To be in the top seat in the preliminary sumo match is called naka." ※Kokoro (1914)〈Natsume Soseki〉Volume 2 "In both junior and senior high school, K always occupied the top seat (jauseki) ."

kami-seki [senior]

〘noun〙 A performance held at a vaudeville hall or other venue between the 1st and 10th of the month.

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙 (「しょうせき」とも)① (━する) 席に上ること。※和蘭字彙（1855‐58）「Hij heeft in die vergadering voorgezeeten. 彼ハ其打寄ニ上席シタ」② (━する) 上位の人がすわるべき席。上座。また、その席に着くこと。〔慶応再版英和対訳辞書（1867）〕〔南史‐江淹伝〕③ 階級、等級、席次が上であること。※随筆・相撲今昔物語（1785）七「前相撲の上席に居るを中といふ」※こゝろ（1914）〈夏目漱石〉下「中学でも高等学校でも、Ｋの方が常に上席(ジャウセキ)を占めてゐました」