| A | B |
| a flat landform with steep sides, similar to a plateau, but smaller | mesa |
| a narrow stretch of land connecting two larger land areas | isthmus |
| land that is drained by a river and its tributaries | basin |
| a group of islands, oftentimes in the form of a chain | archipelago |
| a narrow body of water, which connects two larger bodies of water | strait |
| triangularly-shaped and usually very fertile area at the mouth of a river | delta |
| a structure near the water's surface usually made from the skeletons of small sea animals | reef |
| projection of land into an ocean or lake | cape |
| the beginning of a river, usually found in an elevated area | source |
| the end of a river where it flows into a larger body of water | mouth |
| a smaller river or stream, which flows into a larger river | tributary |
| a long extension of the sea into the coast; this steep-sided valley has usually been formed by glaciers | fjord |
| a raised area of land, such as a hill or mountain, with a flat top | plateau |
| a long, narrow strecth of land that is surrounded by water on three sides | peninsula |
| partly enclosed by a wide, curving stretch of land | bay |
| a deep, narrow valley with steep sides | canyon |
| a large inlet of the sea that cuts deeply into the land | gulf |