4
choky
4
constrain(verb, hold, imprison, incarcerate)
4
detention
4
enclosure(noun, area, run, field, pen)
4
hoosegow(noun, free, slang)
4
imprisonment(noun, custody, incarceration, remand)
4
pound(noun, keep, field, pen, cell)
3
alcatraz
3
barrier(noun, enclosure, inclosure)
3
black hole(noun, expression, idiom)
3
deep
3
donjon(noun, fortification, cell, stronghold, presidio)
3
guardhouse(noun, fortification, pen, cell, stronghold)
3
house of detention(noun, expression, idiom)
3
incarceration(noun, custody)
3
limbo
3
lock-up
3
penal colony(noun, expression, idiom)
3
reform school
2
college
11 years ago|10k views|share |citing 
APASmart Define. (2015). prison thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/prison/thesaurus/synonyms
ChicagoSmart Define. 2015. "prison thesaurus" https://smartdefine.org/prison/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, prison thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/prison/thesaurus/synonyms>.
MLASmart Define. "prison thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/prison/thesaurus/synonyms>