What is "on or about"

Usage examples of "on or about".

I may as well begin by informing you, formally, that the federal search warrant made out by the Denver District Court to them army men is still in force until such time as your brother is found on or about these premises.

But if you'd still had the money on you, or anywhere on or about the premises, somebody would have surely found it as they cleaned up after your demise.

A great part of the day too she would be playing on or about the king's bed.

He next asked Don Luis de la Cerda, Count of Medina Celi, who was sufficiently intrigued to arrange an audience, on or about May 1, 1486, with Queen Isabella I of Castile.

Later, too, as I watched at the window, there came a thin streak of flame that seemed to alight on or about this very house.