Res judicata
Res judicata or res iudicata, also known as claim preclusion, is the Latin term for judged matter, and refers to either of two concepts in common law civil procedure: a case in which there has been a final judgment and that is no longer subject to appeal; and the legal doctrine meant to bar (or preclude) relitigation of a claim between the same parties. In the case of res judicata, the matter cannot be raised again, either in the same court or in a different court.