20 entries under idiom topic. ×

7
penal institution(noun, expression, keep, facility)
7
house of correction(noun, expression, free, prison)
6
big house(noun, expression, free, slang)
3
house of detention(noun, expression, prison)
2
black hole(expression, prison)
2
correctional institution(noun, expression, jail)
2
high priest(expression, clergy)
2
penal colony(expression, prison)
2
penal settlement(expression, prison)
2
spiritual director(expression, clergy)
2
sponging house(expression, prison)
1
penal complex(noun, expression, pen, reformatory)
0
ancient flamen(expression, clergy)
0
female swan
0
isolation exclusion(expression, prison)
0
not hardened(expression, penitence)
0
penal servitude
0
prison house(expression, prison)
0
round house(expression, prison)
0
station house(expression, prison)
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APASmart Define. (2015). penitentiary thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/penitentiary/thesaurus/synonyms
ChicagoSmart Define. 2015. "penitentiary thesaurus" https://smartdefine.org/penitentiary/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, penitentiary thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/penitentiary/thesaurus/synonyms>.
MLASmart Define. "penitentiary thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/penitentiary/thesaurus/synonyms>