| A | B |
| DELTA | Deposits at the mouth of a river |
| DESERT | Dry barren region |
| DUNE | A hill or ridge of sand |
| FJORD | A narrow inlet of sea between cliffs |
| FORD | To cross shallow water |
| FOREST | A growth of trees covering a large area |
| GEYSER | Spring that shoots hot water and steam into the air |
| GLACIER | Large moving body of ice on land |
| GRASSLAND | Land covered with grass |
| GULCH | Ravine |
| GULF | Ocean or sea extending onto land |
| HEADLAND | Point of highland sticking out into the sea |