Synonyms of 'breakwater'
A jetty is a wide stone wall or wooden platform where boats stop to let people get on or off, or to load or unload goods.
Schooners are moored off wooden jetties.
Thesaurus for breakwater from the Collins English Thesaurus
A breakwater is a wooden or stone wall that extends from the shore into the sea and is built in order to protect a harbour or beach from the force of the waves.