| A | B |
|---|
| bar | a ridge of sand or gravel built along the shore by tides or currents |
| bay | a partially enclosed area of water with a wide opening to the sea |
| butte | a hill with a small, flat top and sloping sides; common in dry regions |
| canyon | a narrow, deep gash in the earth with steep sides; gorge |
| cape | a point of land extending into a body of water |
| delta | a deposit of sediment at a river's mouth, usually in the shape of a triangle |
| escarpment | a steep slope or long cliff between two level areas at different altitudes |
| estuary | a long, wide river mouth that rises and falls with tides |
| gulf | a large, partially enclosed area of water that often has a narrow opening to the sea |
| hill | a small but visible rise in land elevation with slopes on all sides |
| island | a piece of land completely surrounded by water |
| isthmus | a narrow portion of land connecting two larger land areas |
| lagoon | a shallow body of water separating land from nearby sandbars or coral reefs |
| lake | a totally enclosed body of water with no outlets other than rivers |
| mesa | a hill with a large, flat top and steep sides |
| mountain | a landform that stands high above the surrounding landscapes |
| mouth (of a river) | the opening of a river where it empties into another body of water |
| peak | a high point on a mountain |
| peninsula | an area of land surrounded by water on three sides |
| plain | a wide, level area of land |
| plateau | a large area of land that rises above surrounding areas; tableland |
| reef | a ridge below the surface of an ocean that rises up from the ocean floor near the shore |
| sound | a long, wide stretch of water that is a passageway between larger bodies of water or that leads inland from the ocean |
| source (of a river) | the spring, lake or other point from which a river originates |
| strait | a narrow waterway joining two larger bodies of water |
| valley | a long, low area of land between higher land |
