In the law, a pleading is one of the papers filed with a court in a civil action, such as a complaint, a demurrer, or an answer. A complaint is the first pleading filed by a plaintiff which initiates a lawsuit. A complaint sets forth the relevant allegations of fact that give rise to one or more legal causes of action along with a prayer for relief whereas a demurrer is a pleading filed by a defendant which challenges the legal sufficiency of a complaint and an answer is a pleading which admits or denies the specific allegations set forth in a complaint and constitutes a general appearance by a defendant. A defendant may also file a cross-complaint as well as bringing other parties into a case by the process of interpleader.

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