Don't really understand if you want the name of a land surrounded by water (Australia) or if you want to know what land surrounded by water is called (island)
:D
An island is a piece of land entirely surrounded by water.
A peninsula is a piece of land that is almost entirely surrounded by water. An antonym for peninsula would be bay, as a bay is a body of water that is almost entirely surrounded by land.
a peninsula... it is surrounded by water on three sides but has land on the fourth... example: Florida
An island
It is a Peninsula
If it is a country surrounded by land and so having no coast, it is said to be landlocked. An open of land area surrounded by a forest is called a glade or meadow. You can have valleys and basins in terms of geographical forms of land surrounded by other kinds of land.
An area almost entirely surrounded by water is called a peninsula.
Europe
Islands are surrounded by water, while "landlocked" areas are completely surrounded by land. Additionally, peninsulas are strips of land that are almost entirely surrounded by water but are still connected to main land.
surrounded entirely or almost entirely by land.
A lake, or an inland sea.
An island is a piece of land surrounded by sea. A peninsula is piece of land that sticks out into water.