Breakwater and Causeway

Breakwater noun - A protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away.

Causeway and breakwater are semantically related In some cases you can use "Causeway" instead a noun "Breakwater".

Causeway noun - A road that is raised above water or marshland or sand.

Breakwater and causeway are semantically related in dike topic. You can use "Breakwater" instead a noun "Causeway".