bulwark

/bˈʊlwɚk/ · 2 syllables

Meaning

noun

1. an embankment built around a space for defensive purposes
   “they stormed the ramparts of the city”
2. a fencelike structure around a deck (usually plural)
3. a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away

verb

1. defend with a bulwark

Synonyms for bulwark

• rampart
• wall
• breakwater
• groin
• groyne
• mole
• seawall
• jetty