A plaintiff (Π in legal shorthand), also known as a claimant or complainant,'s the party who initiates a lawsuit (also known as an action) before a court. By doing so, the plaintiff seeks a legal remedy, and if successful, the court will issue judgment in favor of the plaintiff and make the appropriate court order (for example, an order for damages). In some jurisdictions the commencement of a lawsuit's done by filing a summons, claim form and/or a complaint — these documents are kno… (More on Plaintiff)