Русско-англо-русский юридический словарь

A plaintiff (Π in legal shorthand), also known as a claimant or complainant, is the term used in some jurisdictions for 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 (e.g., an order for damages). [...]

In Hong Kong, Canada and the United States, as well as in both Northern Ireland and the Republic of Ireland, the legal term "plaintiff" is still in use. American usage traditionally limits the application of terms such as "claimant" and "claim form" to extrajudicial process in insurance and administrative law. After exhausting remedies available through an insurer or government agency, an American claimant in need of further relief would turn to the courts, file a complaint (thus establishing a real court case under judicial supervision), and become a plaintiff. (Wikipedia)

The legal department of a business handles legal issues that may come up in the course of business, ranging from drafting waiver forms for employees to handling lawsuits from angry customers. Many large companies have this type of department; smaller companies may choose to keep a lawyer or a staff of lawyers on retainer, ensuring that they have quick access to legal knowledge when they need it. (WiseGEEK)

Global Vehicles USA, Inc. has served a Demand for Arbitration pursuant to its contract with Mahindra & Mahindra, Ltd. and simultaneously filed a civil lawsuit in an Atlanta federal court seeking injunctive relief.

These actions have been taken as a result of Mahindra & Mahindra's failure to comply with its contractual obligations to make its vehicles available for sale in the United States on a timely basis and to otherwise protect the loyal dealers who have patiently waited for such deliveries. (PRNewswire)

Procedural law or adjective law comprises the rules by which a court hears and determines what happens in civil lawsuit, criminal or administrative proceedings. (Wikipedia)