litigant
A litigant is a person or organization that participates in a lawsuit before a court or tribunal. The term encompasses both sides of a dispute—the party who initiates the action (the plaintiff or claimant) and the party against whom the action is brought (the defendant or respondent)—as well as other participants who may have standing in the proceeding, such as intervenors or cross-claimants. The word is used in civil procedure to describe the actors in litigation rather than the merits of the case.
Etymology: from Latin litigans, the present participle of litigare meaning "to contend, dispute." Related terms include
In practice, litigants have procedural rights and duties, including the right to be heard, to present evidence,