A large natural elevation of the earth's surface rising abruptly from the surrounding level.

• Peninsula

• Strait

• Mountain

• Valley

A low area of land between hills or mountains, typically with a river or stream flowing through it.

• Island

• Valley

• Tributary

• Peninsula

A large body of water surrounded by land.

• Peninsula

• Strait

• Island

• Lake

Fresh water flowing downhill over land.

• River

• Strait

• Gulf

• Ocean

The part of a river where it flows into a body of water.

• Source

• Mouth

• Tributary

• Strait

A stream that flows to a larger stream or river.

• Mountain

• Strait

• Source

• Tributary

The place where a river begins.

• Tributary

• Strait

• Source

• Mouth

A narrow waterway joining two larger bodies of water.

• Lake

• Strait

• Mountain

• Island

A piece of land almost surrounded by water, usually on 3 sides.

• Peninsula

• Mountain

• River

• Island

A piece of land surrounded by water.

• Lake

• Island

• Peninsula

• River