64 entries under fortification topic. ×

11
prison(noun, keep, field, pen)
9
keep(noun, container, stronghold, room)
5
bastille(noun, keep, container, stronghold)
4
donjon(noun, stronghold, presidio, prison)
4
jailhouse(noun, keep, stronghold, barrier)
4
stronghold(noun, presidio, prison, sustainment)
2
bullpen(noun, keep, stronghold, presidio)
2
tower(noun, container, stronghold, room)
1
guardhouse(noun, stronghold, presidio, sustainment)
1
antechamber(noun, space, box, container, hollow)
1
pokey(noun, keep, stronghold, presidio)
1
slammer(noun, keep, stronghold, barrier)
1
up the river(noun, expression, idiom, keep)
0
acropolis(noun, stronghold, presidio, sustainment)
0
alcazar(noun, stronghold, presidio, sustainment)
0
alimony(noun, stronghold, presidio, sustainment)
0
barbican(noun, stronghold, presidio, sustainment)
0
blockhouse(noun, stronghold, presidio, sustainment)
0
board(noun, stronghold, presidio, sustainment)
0
bread and butter(noun, expression, idiom, stronghold)
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APASmart Define. (2016). cell thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/cell/thesaurus/synonyms
ChicagoSmart Define. 2016. "cell thesaurus" https://smartdefine.org/cell/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, cell thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/cell/thesaurus/synonyms>.
MLASmart Define. "cell thesaurus" 2 March 2016. Web. 21 September 2026. <https://smartdefine.org/cell/thesaurus/synonyms>