| A | B |
|---|
| fjord | a long, narrow inlet of the sea between high cliffs that was carved out by glaciers; found in cold regions |
| archipelago | a group or chain of related islands |
| isthmus | a narrow strip of land that connects two larger areas of land with water on either side |
| strait | a narrow passage of water connecting two larger bodies of water with land on either side |
| sea | a body of salt water, generally larger than a gulf or bay, that is partially or completely enclosed by land |
| bay | a body of water, generally smaller than a sea or gulf, that is partially enclosed by land |
| gulf | a body of water, generally bigger than a bay but smaller than a sea, that is partially enclosed by land |
| channel | a passage of water, generally wider than a strait, that connects two larger bodies of water and has land on either side |
| canyon | a steep valley between plateaus usually with a river running through it |
| valley | low area between hills or mountains, typically with a river running through it |
| mesa | flat-topped land at a higher elevation than the surrounding land; smaller than a plateau but larger than a butte |
| plateau | an elevated area of flat ground that has steep sides; larger than a butte or mesa |
| butte | a hill with steep sides and a flat top; smaller than a mesa |
| cape | a point of land that juts out abruptly into the water |
| peninsula | land surrounded by water on three sides |
| island | land completely surrounded by water |
| source | where a river begins |
| mouth | where a river ends |
| delta | triangular-shaped land formed at the mouth of some rivers |
| basin | an area drained by a river |
| tributary | a river or stream that flows into a bigger body of water |
| continental divide | high point of land that separates the flow of rivers |
| plain | broad, flat or gently rolling land at a low elevation |
| lake | a body of water (usually fresh) completely surrounded by land |
| glacier | a large, slow-moving mass of ice and snow |
| sound | a channel of water that separates islands from the mainland |
