Definition of: trespass

(tres′pəs, -pas′) v.i.
1. Law To violate wilfully and forcibly the personal or property rights of another; commit a trespass: with on or upon.
2. To pass the bounds of propriety or rectitude, to the injury of another; intrude offensively; encroach: with on or upon.
3. To violate a positive law, rule, or custom: with against.
—noun
1. Any voluntary transgression of law or rule of duty; any offense done to another.
2. Law Any wrongful act accompanied with force, either actual or implied, as wrongful entry on another's land, whereby another is injuriously treated; also, an action for trespass. See synonyms under AGGRESSION, ATTACK, OFFENSE. [<OF trespasser pass beyond, across <Med. L transpassare <L trans- across, beyond + passare PASS]
—tres′pass·er noun