A legal doctrine preventing new litigation by the same parties on the same matter after it has been fully adjudicated.

Once a valid judgment has been rendered in one state, the claims adjudicated cannot be re-litigated in another state. Pg. 250.

A rule which states that once a claim has been decided by the court, a person cannot bring another action based upon that same claim.

The thing has been decided.

Latin.] "Things Judged." A term referring to matters already decided by the court and thus not subject to being heard again.

a matter finally decided on its merits by a court having competent jurisdiction and not subject to litigation again between the same parties. A rule of civil law that once a matter has been litigated and final judgment has been rendered by the trial court, the matter cannot be relitigated by the parties in the same court, or any other trial court. A court will use res judicata to deny reconsideration of a matter.

A thing ajudged Once a case has been finally decided upon by a Court the same parties cannot attempt to raise the issue by or during further proceedings

a matter already settled in court; cannot be raised again

The matter already has been finally decided; a rule against relitigation of issues.

A matter of thing previously settled by judgment of a court.

Literally "a matter judged", res judicata is the principle that a matter may not, generally, be relitigated once it has been judged on the merits.

The principle that once a competent court has adjudicated on a point the parties or their successors may not reopen the matter except by way of appeal.

Latin: A matter which has already been conclusively decided by a court.

Res judicata (Latin for "a matter [already] judged") is, in both civil law and common law legal systems, a case in which there has been a final judgment and is no longer subject to appeal. The term is also used to refer to the doctrine meant to bar relitigation of such cases between the same parties, which is different between the two legal systems.