Wiktionary
n. (context legal English) A placeholder name of a fictitious or hypothetical estate in land commonly used to discuss the rights of various parties to a piece of real property.
Wikipedia
Blackacre, Whiteacre, Greenacre, Brownacre, and variations are the placeholder names used for fictitious estates in land.
The names are used by professors of law in common law jurisdictions, particularly in the area of real property and occasionally in contracts, to discuss the rights of various parties to a piece of land. A typical law school or bar exam question on real property might say:
Where more than one estate is needed to demonstrate a pointperhaps relating to a dispute over boundaries, easements or riparian rightsa second estate will usually be called Whiteacre, a third, Greenacre, and a fourth, Brownacre.
Usage examples of "blackacre".
Toby suddenly realised that there were lights in some of the windows of Blackacre Farm.
And then the light went out, and the figure was gone, and Blackacre Farm was dark and still again.
Something, or more likely someone, had torn the guts out of Blackacre and pinned them firmly in Mysterie.
Whoever gutted Blackacre to make it his own has to be one of the Powers and Dominations.
Life had come and gone, and nothing would ever thrive in Blackacre again.
There were dead trees everywhere he looked, for as far as he could see, as though the Blackacre woods were now much bigger on the inside than they appeared on the outside.
As though Blackacre was growing, expanding, under the influence of its new owner.
It was more than a century since anyone had actually lived in the Blackacre farmhouse, and it showed.
After a while, he turned slowly and looked back at the border of Blackacre, where Mysterie butted up against Veritie.
With Hob and Angel in residence, Blackacre has become a stain upon nature.
Hob thrust Blackacre out of Veritie and into Mysterie, nothing natural can get anywhere near it, in either world.
Hob had seen him, back at Blackacre farmhouse, and it was only a matter of time before he, or more likely one of his nastier agents, came looking for the poor deluded fool who had dared to spy on the great and powerful Nicholas Hob.
Get together all the most powerful people, form our own army and take Blackacre by force?
If Bradford-on-Avon really was the secret heart of the world, then Blackacre was the hidden canker in that heart.
Leo, two very different shape-shifters, approached the Blackacre boundary, not knowing that from another side, another group was doing the same thing at the same time.