Synonyms|72Antonyms|0|Broader|1Narrower|5Related|1
6
prison(noun, keep, facility, cell, residence)
5
jail(noun, place, keep, facility, pen)
4
penitentiary(noun, keep, facility, cell, jail)
4
pen(noun, facility)
3
brig(noun, keep, facility, cell, jail)
3
dungeon(noun, facility)
3
reformatory(noun, school)
3
stockade(noun, facility, jail, enclosure)
2
concentration camp(noun, facility)
2
gaol(noun, keep, jail, prison, confinement)
2
house of detention(noun, facility)
2
labor camp(noun, facility)
2
lockup(noun, facility)
2
penal colony(noun, facility)
2
penal facility
2
reform school
2
slammer(noun, keep, facility, cell, jail)
1
bastille
1
big cage
1
big house
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APASmart Define. (2015). penal institution thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/penal_institution/thesaurus/synonyms
ChicagoSmart Define. 2015. "penal institution thesaurus" https://smartdefine.org/penal_institution/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, penal institution thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/penal_institution/thesaurus/synonyms>.
MLASmart Define. "penal institution thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/penal_institution/thesaurus/synonyms>