Intrusion

The act of intruding, or of forcing in; especially, the forcing (one's self) into a place without right or welcome; encroachment.

The penetrating of one rock, while in a plastic or metal state, into the cavities of another.

The entry of a stranger, after a particular estate or freehold is determined, before the person who holds in remainder or reversion has taken possession.

The settlement of a minister over 3 congregation without their consent.

entry to another's property without right or permission

the forcing of molten rock into fissures or between strata of an earlier rock formation