64 entries under fortification topic. ×

10
prison(noun, free, can, cell)
9
pokey(noun, keep, free, slang)
6
jailhouse(noun, keep, cell, stronghold)
2
keep(noun, free, pen, cell)
1
bastille(noun, keep, pen, cell)
1
bullpen(noun, keep, cell, stronghold)
1
cell(noun, keep, stronghold, barrier)
1
guardhouse(noun, pen, cell, stronghold)
1
statesville(noun, pen, cell, stronghold)
1
up the river(noun, expression, idiom, cell)
0
acropolis(noun, cell, stronghold, presidio)
0
alcazar(noun, cell, stronghold, presidio)
0
alimony(noun, cell, stronghold, presidio)
0
antechamber(noun, cell, stronghold, presidio)
0
barbican(noun, cell, stronghold, presidio)
0
blockhouse(noun, cell, stronghold, presidio)
0
board(noun, cell, stronghold, presidio)
0
bread and butter(noun, expression, idiom, cell)
0
breastwork(noun, cell, stronghold, presidio)
0
castle(noun, cell, stronghold, presidio)
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APASmart Define. (2015). slammer thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/slammer/thesaurus/synonyms
ChicagoSmart Define. 2015. "slammer thesaurus" https://smartdefine.org/slammer/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, slammer thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/slammer/thesaurus/synonyms>.
MLASmart Define. "slammer thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/slammer/thesaurus/synonyms>