What is another word for prison?

There are many words for prison, depending on the context and nuance you want to convey. Here are a few options:

Formal:

* Penitentiary

* Correctional facility

* Jail

* Detention center

* Reformatory

* House of correction

Informal:

* Big house

* Slammer

* Pen

* Cage

* Joint

* Cooler

Literary:

* Dungeon

* Bastille

* Gaol (archaic)

* Confinement

* Incarceration

The best word to use depends on the specific situation and the tone you want to create.