116 entries under defense topic. ×

4
parapet(noun, support, cover, position, block)
4
reinforcement(noun, support, union, alliance)
4
stockade(noun, cover, position, block, bar)
4
strengthening(noun, support, union, alliance)
4
wall(noun, cover, position, block, bar)
3
entrenchment(noun, cell, stronghold, presidio)
3
bank
3
bunker(noun, shelter)
3
casemate
3
circumvallation
3
consolidation(noun, union, alliance, merging)
3
contravallation
3
fastness(noun, hold, cover, keep, position)
3
mound(wall, embankment, bulwark, rampart)
3
safeguard(noun, support, cover, position, guard)
3
support(noun, rock, cell, stronghold)
3
vallation(noun, support, wall, embankment)
2
abatis
2
balistraria
2
blockhouse(noun, top, shelter, cell)
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APASmart Define. (2015). fortification thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/fortification/thesaurus/synonyms
ChicagoSmart Define. 2015. "fortification thesaurus" https://smartdefine.org/fortification/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, fortification thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/fortification/thesaurus/synonyms>.
MLASmart Define. "fortification thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/fortification/thesaurus/synonyms>