Pluricentric Language
A pluricentric language or polycentric language is a language with several interacting codified standard forms, often corresponding to different countries.[1][2][3]
Many examples of such languages can be found worldwide among the most-spoken languages, including but not limited to
Chinese in mainland China, Taiwan and Singapore;
English in the United Kingdom, the United States, India, and elsewhere; and
French in France, Canada, and elsewhere.[4]
The converse case is a monocentric language, which has only one formally standardized version.
Examples include Japanese and Russian.[5]
In some cases, the different standards of a pluricentric language may be elaborated until they become autonomous languages, as happened with Malaysian and Indonesian, and with Hindi and Urdu.[5]
The same process is under way in Serbo-Croatian.[5][6]