4
wall(noun, hindrance)
3
earthwork
3
jutty
3
rampart
3
roadstead(noun, refuge, dock, port, wharf)
3
weir
2
barrage
2
beaver dam(expression, idiom, hindrance)
2
boom
2
buffer
2
bulkhead
2
cape
2
defense
2
delta
2
dyke
2
landing(noun, dock, port, quay, wharf)
2
marina(noun, dock, port, wharf)
2
mooring(noun, dock, port, quay, wharf)
2
reef
2
seaport
11 years ago|3.2k views|share |citing 
APASmart Define. (2015). breakwater thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/breakwater/thesaurus/synonyms
ChicagoSmart Define. 2015. "breakwater thesaurus" https://smartdefine.org/breakwater/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, breakwater thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/breakwater/thesaurus/synonyms>.
MLASmart Define. "breakwater thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/breakwater/thesaurus/synonyms>