Synonyms|229Antonyms|5|Broader|8Narrower|0Related|57
4
bridewell(noun, prison)
4
confinement
4
locking
4
oubliette(noun, prison)
4
reformatory(noun, prison)
4
slammer(noun, free, slang, jail)
4
solitary confinement
3
can(noun, free, slang)
3
limbo(noun, prison)
3
quod
3
stockade(noun, prison)
3
tollbooth(noun, prison)
2
black hole(expression, idiom, prison)
2
certainty(noun, trust, confidence, assurance, stock)
2
den(noun, container, prison, chamber, cage)
2
detention
2
guardroom
2
hold(noun, container, prison, chamber, cage)
2
house of detention(expression, idiom, prison)
2
penal colony(expression, idiom, prison)
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APASmart Define. (2015). lockup thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lockup/thesaurus/synonyms
ChicagoSmart Define. 2015. "lockup thesaurus" https://smartdefine.org/lockup/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, lockup thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lockup/thesaurus/synonyms>.
MLASmart Define. "lockup thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/lockup/thesaurus/synonyms>