noun
dangerous area; perilous place
Refers to a physically dangerous location, such as a rough neighborhood or a hazardous road. Often used in warnings or descriptions of unsafe areas.
夜遅くに悪所を通るのは避けたほうがいい。
It's better to avoid passing through dangerous areas late at night.
noun
red-light district; brothel area
Historically used for entertainment quarters with brothels; now somewhat dated. Modern terms like 風俗街 or 歓楽街 are more common. The cross-reference to 岡場所 suggests a specific historical context.
See also: 岡場所 (おかばしょ)
江戸時代、悪所は吉原のような場所を指した。
In the Edo period, 悪所 referred to places like Yoshiwara.
Compound of 悪 (bad, evil) and 所 (place). The exact historical derivation is uncertain, but the kanji straightforwardly indicate a 'bad place'.