What does writ and leave mean?

In legal terms, a "writ" is a formal written order issued by a court directing an individual or entity to perform or refrain from performing a specific action. "Leave" typically refers to permission granted by the court to proceed with a legal action, such as filing a writ or appealing a decision. Together, "writ and leave" often pertains to the process of obtaining judicial permission to file a specific type of legal action.