84 entries under noun topic. ×

3
guard(support, cover, position, shield)
3
outwork(support, defense, fortification, embankment)
3
parados
3
support(support, place, defense, fortification)
3
tower of strength(expression, idiom, support, place)
2
acropolis(stronghold, fortress, fort)
2
alcazar(stronghold, fortress, fort)
2
blockhouse(keep, top, defense, stronghold)
2
bunker
2
command post(expression, bunker)
2
dike(cover, position, guard, shield)
2
donjon(stronghold, fortress, fort)
2
fasthold(stronghold, fortress, fort)
2
fence(cover, position, guard, shield)
2
hold(stronghold, fortress, fort)
2
keep(top, defense, refuge, stronghold)
2
mainstay(support, place, fortification, stronghold)
2
palace(stronghold, fortress, fort)
2
palisade(cover, position, guard, shield)
2
peel(stronghold, fortress, fort)
11 years ago|8.7k views|share |citing 
APASmart Define. (2015). bastion thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/bastion/thesaurus/synonyms
ChicagoSmart Define. 2015. "bastion thesaurus" https://smartdefine.org/bastion/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, bastion thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/bastion/thesaurus/synonyms>.
MLASmart Define. "bastion thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/bastion/thesaurus/synonyms>