noun
officially sanctioned brothel (Edo period)
Historical term for a government-licensed brothel in the Edo period, often associated with the Yoshiwara district. Not used for modern establishments.
江戸時代、青楼は幕府公認の遊郭だった。
In the Edo period, 青楼 were officially recognized brothels by the shogunate.
吉原は江戸で最も有名な青楼の集まる場所だった。
Yoshiwara was the most famous area where 青楼 were concentrated in Edo.