119 entries under defense topic. ×

4
earthwork(noun, support, keep, fortification)
4
fortress(noun, support, fortification, stronghold)
4
guard(noun, support, care, shield, shelter)
4
parapet(noun, support, block, bar, protection)
3
bank
3
bastion(noun, support, protection, fortification)
3
battlement(support, keep, barricade, wall)
3
embankment(noun, support, block, bar, protection)
3
mound(fortification, wall, embankment, bulwark)
3
security(noun, support, care, guard, shield)
3
umbrella(noun, shade, care, guard, shield)
3
vallation(noun, support, fortification, wall)
2
abatis
2
armor(noun, care, guard, shield, shelter)
2
balistraria
2
breastwork(support, keep, barricade, wall)
2
casemate
2
circumvallation
2
contravallation
2
escarp
11 years ago|16k views|share |citing 
APASmart Define. (2015). barrier thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/barrier/thesaurus/synonyms
ChicagoSmart Define. 2015. "barrier thesaurus" https://smartdefine.org/barrier/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, barrier thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/barrier/thesaurus/synonyms>.
MLASmart Define. "barrier thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/barrier/thesaurus/synonyms>