31 entries under fortification topic. ×

24
citadel(noun, support, place, structure, stronghold)
18
stronghold(noun, support, place, cover, position)
14
fortress(noun, support, place, cover, position)
12
bulwark(noun, support, place, cover, position)
7
rampart(noun, support, cover, position, guard)
6
redoubt(noun, support, cover, position, top)
6
breastwork(noun, support, place, defense)
6
defense(noun, support, place, cover, guard)
6
fort(noun, support, cover, position, guard)
4
parapet(noun, support, place, cover, position)
4
barricade(noun, cover, keep, position, guard)
3
barrier(noun, support, protection, defense)
3
earthwork(noun, keep, defense, barricade)
3
guard(noun, support, cover, position, shield)
3
outwork(noun, support, defense, embankment)
3
support(noun, support, place, defense)
2
fence(noun, cover, position, guard, shield)
2
mainstay(noun, support, place, stronghold)
2
mound(wall, embankment, bulwark, rampart)
2
protection(noun, support, place, cover, position)
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APASmart Define. (2015). bastion thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/bastion/thesaurus/synonyms
ChicagoSmart Define. 2015. "bastion thesaurus" https://smartdefine.org/bastion/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, bastion thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/bastion/thesaurus/synonyms>.
MLASmart Define. "bastion thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/bastion/thesaurus/synonyms>