extensive landed property (especially in the country) retained by the owner for his own use
The family owned a large estate on Long Island.
source: WordNet 3.0
territory over which rule or control is exercised
His domain extended into Europe. He made it the law of the land.
source: WordNet 3.0
A lord's chief manor place, with that part of the lands belonging thereto which has not been granted out in tenancy; a house, and the land adjoining, kept for the proprietor's own use.