noun
main performance; headliner
Used in entertainment contexts for the main act or top-billed performer, especially in traditional Japanese theater or variety shows.
今日の後座は落語の大御所だ。
Today's headliner is a rakugo master.
noun
latter half of a formal tea ceremony
Refers to the second part of a formal tea gathering (chaji), where the host serves thick tea (koicha) and then thin tea (usucha), and the guests actually drink. Contrasts with 初座 (shoza), the first half.
See also: 初座
後座では濃茶と薄茶が振る舞われる。
In the latter half of the tea ceremony, thick tea and thin tea are served.