1 An action, cause of action, controversy, proceeding, or suit at law or in equity filed with a court. 2Same as trespass on the case. See trespass. 3 The aggregate of the evidence presented at trial by a party in support of their argument or position. agreed case. See case stated. case at bar.A case that is proceeding towards resolution or trial or is under the particular or immediate attention of the court. Also called instant case and present case. See also bar and sub judice. case in chief...