"Borough English" is a term that refers to a traditional rule of inheritance in English common law, where the youngest son inherits the family estate upon the death of the father. However, there are several synonyms that can be used to describe this concept, including "junior-right", "customary freehold", "partible inheritance", and "gavelkind". These terms are often used in legal and historical contexts to refer to the same principle of inheritance. While the practice of borough English has largely fallen out of use, its legacy can still be seen in certain legal systems and cultural practices today, particularly in some parts of the world where traditional customs and laws continue to define inheritance rights and property ownership.