One who, without permission of the owner or privileges, enters onto another's property intentionally. Under tort law, such a person is owed no consideration by the landowner for any ills that may befall him or her. See alsoinvitee. n. trial 1 A formal judicial examination of issues of law or fact between parties by a court with jurisdiction in such cases. 2A formal adversarial proceeding to hear evidence and decide legal issues and claims. Trials are covered by established rules of courtroom ...