- Definitions|0
- Thesaurus|45
- Abbreviations|0
23 entries under noun topic. ×
| penal institution(expression, pen, prison, lockup) | |
| up the river(expression, idiom, pen, prison) | |
| G(pen, reformatory, penitentiary) | |
| bastille(pen, prison, lockup, reformatory) | |
| can(pen, prison, lockup, reformatory) | |
| clink(pen, prison, lockup, reformatory) | |
| confinement(pen, reformatory, penitentiary) | |
| cooler(pen, prison, lockup, reformatory) | |
| detention center(pen, reformatory, penitentiary) | |
| dungeon(pen, prison, lockup, reformatory) | |
| guardhouse(pen, reformatory, penitentiary) | |
| jail(pen, prison, lockup, reformatory) | |
| keep(pen, reformatory, penitentiary) | |
| lockup(pen, prison, reformatory, penitentiary) | |
| pen(prison, lockup, reformatory, penitentiary) | |
| penal complex(pen, reformatory, penitentiary) | |
| penitentiary(pen, prison, lockup, reformatory) | |
| pokey(pen, reformatory, penitentiary) | |
| reformatory(pen, prison, lockup, penitentiary) | |
| slammer(pen, prison, lockup, reformatory) |
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| APA | Smart Define. (2013). secure unit thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/secure_unit/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "secure unit thesaurus" https://smartdefine.org/secure_unit/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2013, secure unit thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/secure_unit/thesaurus/synonyms>. |
| MLA | Smart Define. "secure unit thesaurus" 18 May 2013. Web. 23 September 2026. <https://smartdefine.org/secure_unit/thesaurus/synonyms> |