Synonyms of penitentiary

penitentiary

noun

as in prison

a place of confinement for persons held in lawful custody

a sentence in the state penitentiary for robbery

Synonyms & Similar Words

• prison
• jail
• brig
• bridewell
• jailhouse
• stockade
• calaboose
• lockup
• slammer
• coop
• guardroom
• bastille
• pen
• hoosegow
• cage
• big house
• pokey
• cooler
• hock
• tolbooth
• dungeon
• clink
• jug
• joint
• quod
• can
• cell
• tank
• slam
• stir
• nick
• ward
• gulag
• guardhouse
• reformatory
• bull pen
• hold
• hole
• stalag
• prison camp
• labor camp
• glasshouse
• concentration camp
• keep
• work camp
• oubliette
• block
• reform school
• hulk(s)
• training school

Antonyms & Near Antonyms

• outside

• outside