litigate

To prosecute or defend (a lawsuit or legal action); pursue (a legal case).

To bring a lawsuit or defend against a lawsuit in court.

To carry on a suit by judicial process.

To make the subject of a suit at law; bring before a court of law for decision; prosecute or defend at law, as a right or claim.

To carry on a suit by judicial process.

To make the subject of a lawsuit; to contest in law; to prosecute or defend by pleadings, exhibition of evidence, and judicial debate in a court.

To go to law.

engage in legal proceedings

institute legal proceedings against; file a suit against