Which term is associated with the accumulation of sediment along a coast?

The term associated with the accumulation of sediment along a coast is "beach." A beach is a landform along the shoreline of an ocean, sea, lake, or river. It is typically composed of loose particles such as sand, gravel, or cobblestones that have been deposited by the action of waves and currents. Over time, these sediments are accumulated through various processes like erosion from nearby land and the transportation of sediment by water.

In contrast, reclamation refers to the process of creating new land from oceans, riverbeds, or lake beds, which does not specifically relate to the accumulation of existing sediment on a coast. Coastal sand dunes, while related to sediment accumulation, refer more specifically to the mounds of sand formed by wind action rather than the overall concept of beach formations that encompass various sediments. Tides refer to the periodic rise and fall of sea levels caused by gravitational forces, which do not directly indicate sediment accumulation on a beach. Therefore, the definition and characteristics of a beach directly correlate with sediment accumulation along coastlines.