In the formal legal world, a court case that is dismissed with prejudice means that it is dismissed permanently. A case dismissed with prejudice is over and done with, once and for all, and can't be brought back to court. A case dismissed without prejudice means the opposite. It's not dismissed forever.
The purpose and intended effect of the words “without prejudice” is to prohibit a party from using the doctrine of res judicata (from the Latin, “a thing decided”) in any later actions on the subject matter.
Whereas a case that is dismissed “with prejudice” is dismissed permanently, a case that is dismissed “without prejudice” is only dismissed temporarily. This temporary dismissal means that the plaintiff is allowed to re-file charges, alter the claim, or bring the case to another court.
If a Motion to Dismiss is granted on all claims, the case is ended, and the defendant wins. A case can be dismissed "with prejudice" or "without prejudice." When a case is dismissed with prejudice, it means the plaintiff cannot file the same case against the same defendant again.
Dismissal without prejudice means that the judge dismissed the plaintiff's or prosecutor's case without damaging their right to have their matter heard in court later. A prosecutor may ask to withdraw the case against a person to have more time to make a case stronger, find more evidence or question other witnesses.
“Dismissed without prejudice” is a legal term that means a case is dismissed but can still be refiled at a later point. Both civil and criminal cases can be dismissed without prejudice.
The court may grant a motion to dismiss if the plaintiff's complaint fails to allege all the elements of a claim adequately. Or the court may grant it if the complaint fails to allege a measurable injury.