A sunken area of land is often referred to as a sinkhole. Sinkholes can form when underground water erodes the rock beneath the land's surface, causing it to collapse. They can vary in size from small depressions to large holes that can endanger structures and roads.
The opposite of a sunken area would be a raised area or an elevated area.
A land area that contains two continents is called an isthmus. It serves as a narrow strip of land connecting two larger landmasses, separating two bodies of water. Examples include the Isthmus of Panama connecting North and South America, and the Isthmus of Suez connecting Africa and Asia.
An area of land owned by a country is called territory.
A massive land area is called a continent. The continents are North America, South America, Europe, Asia, Africa, Antarctica, and Australia.
A pointed area of land sticking out into the sea is called a "cape."
An area of land that is sunken or depressed below the surrounding area
basin
The opposite of a sunken area would be a raised area or an elevated area.
area, more commonly called areaway
A land area that contains two continents is called an isthmus. It serves as a narrow strip of land connecting two larger landmasses, separating two bodies of water. Examples include the Isthmus of Panama connecting North and South America, and the Isthmus of Suez connecting Africa and Asia.
An area of land owned by a country is called territory.
Ocean
a broad area of flat or gently rolling land is called a plain.
A small area of land is called: A fobe.
A massive land area is called a continent. The continents are North America, South America, Europe, Asia, Africa, Antarctica, and Australia.
A pointed area of land sticking out into the sea is called a "cape."
a region