Definitions of real estate on the Web:

real property: property consisting of houses and land
Real estate is a legal term (in some jurisdictions, notably in the USA, United Kingdom, Canada, and Australia) that encompasses land along with anything permanently affixed to the land, such as buildings, specifically property that is stationary, or fixed in location. ...
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Referring or relating to real estateProperty that cannot easily be moved, usually buildings and the ground they are built on
Land and improvements to the land.
an identified parcel or tract of land, including improvements, if any.
The physical land and appurtenances, including any structures; for all practical purposes synonymous with real property.
Land and anything permanently affixed to the land, such as buildings, fences and those things attached to the buildings, such as light fixtures, plumbing and heating fixtures or other such items that would be personal property if not attached. ...
Land, including all things permanently attached thereto, whether by nature or by a person; any and every interest in land.
A piece of land, including the air above it and the ground below it, and any buildings or structures on it.
“Real Estate” includes real property, leasehold and business whether with or without premises, fixtures, stock-in-trade, goods or chattels in connection with the operation of the business as defined in the Real Estate and Business Brokers Act of Ontario.
Land and all physical property on, below or attached to the land. Houses, sewers, trees and fences are all real estate.
Land; a portion of the earth's surface extending downward to the center of the earth and upward into space including fixtures permanently ...
One who is licensed by the state to carry on the business of dealing in real estate. A broker may receive a commission for his or her part in bringing together a buyer and seller, landlord and tenant, or parties to an ex