| A | B |
|---|
| archipelago | a group or chain of many islands |
| basin | a region drained by a river |
| bay | part of a body of water which reaches into the land |
| canal | a narrow, man-made channel of water that joins other bodies of water |
| cape | a point; a piece of land extending into the water |
| channel | a deep, narrow body of water connecting two larger bodies of water |
| delta | the land deposited at the mouth of a river |
| downstream | the direction toward which a river flows |
| estuary | an inlet or arm of a sea |
| fall line | the area where rivers descend from piedmont to plain and form waterfalls and rapids |
| fiord | a narrow inlet of the sea with steep banks |
| gap | a narrow opening, especially through a mountain |
| glacier | a large mass of ice that moves slowly down a valley from highlands toward sea level |
| gulf | a part of an ocean or sea which reaches into the land |
| harbor | a sheltered place where ships may anchor safelly |
| highland | hills, mountains, or plateaus |
| island | an area of land completely surrounded by water |
| isthmus | a narrow strip of land which connects two larger bodies of land |
| lagoon | a shallow lake or pond |
| lake | an inland body of water |
| mountain range | a long row of mountains |
| mouth (of a river) | the place where the river flows into a larger body of water |
| ocean | one of the large, continuous areas of the earth into which the water surface is divided |
| peak | the highest point of a mountain |
| peninsula | a piece of land that is nearly surrounded by water |
| piedmont | hilly land at the foot of mountains |
| plains | a flat or level area of land |
| plateau | tableland |
| port | a city or town with a harbor where ships can load and unload cargo |
| reef | a ridge of rock, coral, or sand at or near the water's surface |
| river basin | the area drained by a river and its tributaries |
| river valley | a lowland through which a river flows |
| sea | a large area of salt water smaller than an ocean that is partly or completely enclosed by land |
| seacoast | land next to the sea |
| sound | a wide channel or strait linking two large bodies of water or separating an island from the mainland |
| source (of a river) | the place where a river begins |
| strait | a narrow body of water connecting two larger bodies of water |
| swamp | a low area of wet, spongy ground |
| tributary | a river or creek which flows into a larger river |
| upstream | the direction from which a river flows |
| valley | a lowland between hills or mountains |
