To enter by gradual steps or by stealth into the possessions or rights of another; to trespass; to intrude; to trench; -- commonly with on or upon; as, to encroach on a neighbor; to encroach on the highway.

to go beyond proper limits

to intrude gradually upon the area of another; to advance beyond proper limits.

impinge or infringe upon; "This impinges on my rights as an individual"; "This matter entrenches on other domains"

To build a structure which crosses in whole or in part the boundary line of another's property. This may occur due to incorrect surveys, guesses or miscalculations by builders and/or owners when erecting a building.

Contacting an opposing player before the snap. Encroaching is illegal, with a five-yard penalty.

Paying out of money or assets held in trust to a beneficiary.

Encroachment.