70 entries under prison topic. ×

22
coop(noun, verb, place, free, obscure)
21
confine(noun, verb, action, place, keep)
20
cage(noun, verb, hold, place, free)
18
penitentiary(noun, place, run, free, informal)
16
jail(noun, verb, hold, place, free)
15
prison(noun, free, informal, field, cell)
12
fold(noun, enclosure)
11
fence(noun, verb, separate, free, obscure)
9
pound(noun, keep, run, field, cell)
7
keep(noun, hold, free, seize, commit)
7
brig(noun, free)
7
calaboose(noun, free)
7
cell(noun, keep, field, container, room)
7
cooler(noun, free, slang)
7
jug(noun, free, slang)
6
dungeon(noun, keep, field, container, cell)
6
reformatory(noun, keep, cell, jail)
6
stockade(noun, hold, curb, field, commit)
5
gaol
5
lockup(noun, free, informal)
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APASmart Define. (2015). pen thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/pen/thesaurus/synonyms
ChicagoSmart Define. 2015. "pen thesaurus" https://smartdefine.org/pen/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, pen thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/pen/thesaurus/synonyms>.
MLASmart Define. "pen thesaurus" 7 October 2015. Web. 23 September 2026. <https://smartdefine.org/pen/thesaurus/synonyms>