The term 'Beach Mound' is composed of two words, the first being 'DUNE', which is a four letter word. A DUNE is a hill or ridge of sand formed by the wind, usually found in deserts or near beaches. Beach mounds are large piles of sand that form along the shoreline of a beach, often caused by strong winds and currents. They can be used to protect the beach from erosion and provide a habitat for wildlife.