牢 - prison, jail, hardness

breaking out of prison; jailbreak

prison; jail; gaol

dungeon; underground prison

precinct of a jail; vicinity of a prison

whipping, stone placement, and shrimp-tie bondage (three forms of Edo-period torture)

solid; strong; sturdy; durable; stout

(punishment by being placed in a) water-filled chamber

firm and solid; stout and durable

jail made by placing bars across a cave entrance; cave prison

prison; jail; gaol

imprisonment

jail for women (Edo period)