1
drawbridge
1
embattlement(noun, support, keep, defense, fortification)
1
enclosure
1
entanglement
1
entrenchment(noun, support, keep, defense, fortification)
1
escarp
1
escarpment
1
fieldwork
1
fort(noun, keep, defense, barricade, wall)
1
fortalice
1
gate
1
glacis
1
gravity dam
1
groin
1
hydraulic-fill dam
1
iron curtain
1
jam
1
jetty
1
keep(noun, defense, fortification, cell, stronghold)
1
leaping weir
11 years ago|1.6k views|share |citing 
APASmart Define. (2015). breastwork thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/breastwork/thesaurus/synonyms
ChicagoSmart Define. 2015. "breastwork thesaurus" https://smartdefine.org/breastwork/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, breastwork thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/breastwork/thesaurus/synonyms>.
MLASmart Define. "breastwork thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/breastwork/thesaurus/synonyms>