Complaint

Legal document, the filing of which initiates a lawsuit

In legal terminology, a complaint is any formal legal document that sets out the facts and legal reasons that the filing party or parties believes are sufficient to support a claim against the party or parties against whom the claim is brought that entitles the plaintiff(s) to a remedy. For example, the Federal Rules of Civil Procedure (FRCP) that govern civil litigation in United States courts provide that a civil action is commenced with the filing or service of a pleading called a complaint. Civil court rules in states that have incorporated the Federal Rules of Civil Procedure use the same term for the same pleading.

This keyword could refer to multiple things. Here are some suggestions: