invasion. 1. A hostile or forcible encroachment on the rights of another.
intentional invasion.A hostile or forcible encroachment on another’s interest in the use or
enjoyment of property, esp. real property, though not necessarily inspired by malice or ill will.
2. The incursion of an army for conquest or plunder. 3.Trusts. A withdrawal from principal. •
In the third sense, the term is used as a metaphor. [Cases: Trusts 276. C.J.S. Trover and Conversion §§ 539–541.] — invade,vb.
[Blacks Law 8th]