The term "under seal" is often used to refer to documents that have been officially certified or approved by a legal authority and are considered legally binding. There are several synonyms for this term, including "under writ," "under hand and seal," and "executed under seal." These phrases are commonly used in legal documents, such as contracts, agreements, and deeds, to indicate that they have been fully executed and are now considered legal documents. It is important to understand the different synonyms for "under seal" when dealing with legal documents to ensure that they are accurately executed and recognized as legally binding.