noun
red-light district; pleasure quarters
Historical term for an unlicensed red-light district in the Edo period, as opposed to the officially sanctioned 遊郭 (ゆうかく). Now mainly encountered in historical or literary contexts.
江戸時代、岡場所は非公認の遊興地として栄えた。
In the Edo period, okabasho flourished as unofficial pleasure quarters.