The term 'file suit' is a legal term that refers to the process of initiating a lawsuit. This process involves several steps, including suing (3 letters), prosecuting (9 letters), appealing (6 letters), and litigating (8 letters). To file suit, one must first SUE the other party, which is the process of formally bringing a lawsuit against them. After this, the case must be prosecuted, which is the process of presenting evidence and arguments in court to prove the plaintiff's case. If the court rules against the plaintiff, they may APPEAL the decision, which is the process of asking a higher court to review the ruling. Finally, if the APPEAL is unsuccessful, the plaintiff may LITIGATE the case, which is the process of taking the case to trial.