Indosphere is a term coined by the linguist James Matisoff for areas of Indian linguistic influence in the neighboring Southern Asian, Southeast Asian, and East Asian regions. It is commonly used in areal linguistics in contrast with the Sinophone languages of the Mainland Southeast Asia linguistic area of the Sinosphere. Notably, unlike terms such as Lusophone or Francophone that refer to the multinational spread and influence of a single language with multiple dialects (Portuguese and French respectively from the example), this term refers to all languages that are considered to originate in India, of which there are 22 recognised languages alone across several major language families, including Indo-European and Dravidian. It considers these collectively in regards to the influence of these languages on the languages of other countries, rather than from the perspective of the spread of the language only.