櫳仔內 [栊－内]

Jyutping lung4 zi2 noi6
Pinyin lóng zǎi nèi

Definitions (Wiktionary)
  1. noun, Taiwanese-Hokkien
    prison; jail
    (syn.) 清室, 囹圄, 牢, 牢房, 大牢, 班房