Standard French (in French: le français standard, le français normé, le français neutre [Neutral French] or le français international [International French], the last being a Quebec invention) is an unofficial term for a standard variety of the French language. It is a set of spoken and written formal varieties used by the educated francophones of several nations around the world.
As French is a pluricentric language, Standard French encompasses various linguistic norms (consisting of prescribed usage). The syntax, morphology, and orthography of Standard French is explained in various works on grammar and style such as the Bescherelle, a reference summary of verb conjugations first compiled in the 19th century by Louis-Nicolas Bescherelle from France, and Le Bon Usage written in the 20th century by Belgian grammarian Maurice Grevisse.
In France, Standard French is based on the pronunciation and vocabulary used in the formal registers of French in Metropolitan France.
In Quebec, it is more often called "International French" or "Radio Canada French" because of decades of a foreign, European pronunciation dominating both news and cultural broadcasts until the 1970s. In the rest of Francophone Canada, the spoken and written varieties of formal Quebec French as well as language in Government of Canada documents and speeches are viewed as Standard French. Linguists have been debating what actually constitutes the norm for Standard French in Quebec and Canada on a lexical level since research, to date, has concentrated much more on the differences from informal varieties of Quebec French and Acadian French.