The Collaborative International Dictionary
Watchhouse
Watchhouse \Watch"house`\, n.; pl. Watchhouses.
A house in which a watch or guard is placed.
A place where persons under temporary arrest by the police of a city are kept; a police station; a lockup.
Wiktionary
watchhouse
n. A small prison attached to a police station, usually used on a temporary basis.
Usage examples of "watchhouse".
Upwerdd River in the north precincts of Eastside, not far from Watchhouse One.
Then came the stretcher, on which the victim of deep potations was carried to the watchhouse, and pitched into a dirty cell, among a score of wretches about as far gone as himself, who saluted their new comrade by a loud, long shout of flare up!