Writ/rɪt/ Definition 1 of 2Pro Tip 1/3Legal Authority Used to refer to a legal document from a court requiring action. The police served a writ to the accused. Pro Tip 2/3Mandatory Action A writ demands someone to do or refrain from doing something. The company received a writ to halt construction. Pro Tip 3/3Court-Specific Usually issued by higher courts and related to legal cases. Her lawyer filed a writ to the Supreme Court.