What is the boundary where the ocean meets the land known as?

The term that accurately describes the boundary where the ocean meets the land is "shoreline." This term encompasses the dynamic area where terrestrial and marine environments interact, including both land and water as they change with tides and weather conditions. The shoreline is often characterized by various geographical features such as cliffs, dunes, and beaches, and it plays a significant role in coastal ecosystems.

The term "coastline" also refers to the outline or shape of the land along the ocean but does not necessarily capture the fluidity and continuous nature of the interaction between land and water that the term "shoreline" does. "Beachfront" specifically refers to the part of the shoreline that is a beach, which is just a part of the larger shoreline area. "Waterline" is typically used to describe the level at which the water meets the land but is less commonly used to refer to the boundary itself.