a large area of often with a large house on it
Estate.
a broad area of flat or gently rolling land is called a plain.
A plateau is a large area of flat land that is higher in elevation than the surrounding land. Plateaus typically have steep cliffs or slopes on at least one side.
An example of a land mass is a continent or a country. Even maybe a very large island.
In order of size: A pile A hill A mountain An island A state/territory A country A continent A moon A planet Some of these can be in different orders. Land is not often used in the context of a moon or planet, but can be.
a large area of often with a large house on it
.
estate
Estate.
.
The word you're looking for is "estate." An estate typically refers to a sizable area of land that often includes a large house, gardens, and sometimes additional buildings or farmland. Estates can be associated with wealth and often feature extensive grounds.
Large is a comparative term.What may be large in one context may not be so in another.A house garden may be large compared to other house gardens but it is tiny compared to a county, which in turn is small compared to a country,
Antarctica
Plateu
9,000000000000
a broad area of flat or gently rolling land is called a plain.
Plateau