This is a list of bodies that consider themselves to be authorities on standard languages, often called language academies. Language academies are motivated by, or closely associated with, linguistic purism and prestige, and typically publish prescriptive dictionaries, which purport to officiate and prescribe the meaning of words and pronunciations. A language regulator may also have a more descriptive approach, however, while maintaining and promoting a standard spelling. Many language academies are private institutions, although some are governmental bodies in different states, or enjoy some form of government-sanctioned status in one or more countries. There may also be multiple language academies attempting to regulate and codify the same language, sometimes based in different countries and sometimes influenced by political factors.