| Deltas | 3-dimensional features found where rivers that contain much sediment flow into the sea; velocity is reduced and deposition of material occurs. |
| Estuaries | Where fresh water (rivers) and salt water (sea) interact. |
| Accurate estuary | Rounded, convex edges. |
| Cuspate estuary | Material evenly spread from the river. |
| Birds foot estuary | Spread over a wide area with many 'distributaries' extending out to sea. |
| Bottom set bed | Have finest material, carried furthest in suspension and sinks to sea bed. |
| Foreset bed | More readily deposited, coarser material. Builds out to sea. |
| "top"set bed | Deposits from river with the most coarse material. |
| Negative change | A fall in sea level in relation to the land. |
| Positive change | Sea level rises in relation to the land (or land sinking in relation to the sea). |
| Isostatic change | Local changes in sea level, due to ice weight depressing earths crust lying beneath it. |
| Eustatic change | Large scale/worldwide changes. |
| Rias | Drowned river valleys. |
| Fjords | Flooded U-shaped valleys. |
| Fjards | Glaciated lowland areas that have since been flooded. |
| Raised beaches | Landforms that occur due to isolated uplift of the land in comparison to the sea, as the weight of ice is slowly removed. |
| Hard engineering | Structures that try to limit the impact on waves and their energy on a stretch of coastline. |
| Soft engineering | More environmentally friendly - tries to work with natural processes to reduce, rather than prevent erosion. |
| Managed retreat | Nature is allowed to take its course. Sometimes seen as the do nothing approach. |