66 entries under prison topic. ×

14
penitentiary(noun, free, jail)
13
prison(noun, free, residence, jail)
10
dungeon(noun, keep, pen, cell, jail)
10
jail(noun, place, free)
10
keep(noun, free, pen, jail)
9
calaboose(noun, free, jail, penitentiary)
8
coop(noun, free, slang, container)
8
gaol
8
pen(noun, keep, free, informal, cell)
6
brig(noun, free)
6
cell(noun, container, room)
6
cooler(noun, free, slang, jail)
6
jug(noun, free, slang)
5
cage(noun, container, chamber)
5
house of correction(noun, expression, idiom, free)
5
jailhouse
4
bastille(noun, keep, pen, cell, jail)
4
bridewell
4
oubliette
4
reformatory
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APASmart Define. (2015). lockup thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lockup/thesaurus/synonyms
ChicagoSmart Define. 2015. "lockup thesaurus" https://smartdefine.org/lockup/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, lockup thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lockup/thesaurus/synonyms>.
MLASmart Define. "lockup thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/lockup/thesaurus/synonyms>