Synonyms|24Antonyms|0|Broader|0Narrower|0Related|0
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G(noun, pen, reformatory, penitentiary)
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bastille(noun, pen, reformatory, penitentiary)
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can(noun, pen, reformatory, penitentiary)
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clink(noun, pen, reformatory, penitentiary)
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confinement(noun, pen, reformatory, penitentiary)
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cooler(noun, pen, reformatory, penitentiary)
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detention center(noun, pen, reformatory, penitentiary)
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dungeon(noun, pen, reformatory, penitentiary)
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guardhouse(noun, pen, reformatory, penitentiary)
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jail(noun, pen, reformatory, penitentiary)
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keep(noun, pen, reformatory, penitentiary)
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lockup(noun, pen, reformatory, penitentiary)
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pen(noun, reformatory, penitentiary)
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penal complex(noun, pen, reformatory, penitentiary)
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penal institution(noun, pen, reformatory, penitentiary)
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penitentiary(noun, pen, reformatory)
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pokey(noun, pen, reformatory, penitentiary)
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prison(noun, pen, reformatory, penitentiary)
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reformatory(noun, pen, penitentiary)
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secure unit(noun, pen, reformatory, penitentiary)
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APASmart Define. (1970). top-security prison thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/top-security_prison/thesaurus/synonyms
ChicagoSmart Define. 1970. "top-security prison thesaurus" https://smartdefine.org/top-security_prison/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 1970, top-security prison thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/top-security_prison/thesaurus/synonyms>.
MLASmart Define. "top-security prison thesaurus" 1 January 1970. Web. 20 September 2026. <https://smartdefine.org/top-security_prison/thesaurus/synonyms>