| A | B |
| bay | a body of water partly or almost entirely enclosed by land |
| strait | a narrow passage of water connecting two larger bodies of water |
| tributary | a stream or river flowing into a larger stream or river |
| delta | a triangular-shaped, silt deposit at the mouth of a river |
| lake | a sizable inland body of water |
| lagoon | a body of shallow water usually connected to a larger lake or the sea |
| cataract | a waterfall (usually of great size) |
| fjord | a long, narrow arm of the sea running between high, rocky cliffs |
| cape | a point of land extending into the sea or a lake |
| sound | a long and narrow body of water (bigger than a strait usually) connecting larger bodies of water |
| peninsula | a piece of land almost surrounded by water |
| isthmus | a piece of land connecting two large pieces of land |
| plateau | a large area of elevated, flat land |
| atoll | a ring-shaped coral island and its reef, nearly or completely enclosing a lagoon |
| archipelago | a sea with many islands (it may also refer to the islands themselves) |
| oasis | an area in the desert made fertile with water |
| river | a larger, natural stream of water flowing into a larger body of water like the ocean |
| Continental Divide | the great ridge of the Rocky Mountain summits separating west-flowing streams from east-flowing streams |
| flood plain | a flat area that is found on both sides of a river or stream and is formed by sediments deposited during floods |
| erosion | the process by which the products of weathering are moved from one place to another |
| weathering | the breaking down of rocks and other materials at the Earth's surface |
| alluvial fan | a fan-shaped deposit of sediments formed at the point where a rive leaves the mountains and runs out into the plain |
| oxbow lake | a U-shaped lake formed when erosion and deposition cuts off a meander of a river |
| levee | in nature, a ridge-like deposity along the sides of a river |
| meander | a loop in a river |
| moraine | a ridge of till left behind a retreating glacier |
| till | the rock and debris deposited directly by a glacier |
| glacier | a large mass of moving ice and snow |