From Citizendium, the Citizens' Compendium
- See also changes related to Esperanto, or pages that link to Esperanto or to this page or whose text .
- Language (general) : A type of communication system; this term is used in linguistics, computer science and other fields to refer to different systems, including 'natural language' in humans, programming languages run on computers, and so on.
- Constructed language : A language whose phonology, grammar, and/or vocabulary have been devised by an individual or group, instead of having naturally developed.
- Communication : The set of interactive processes that create shared meaning.
- Contact language : any language which is created through contact between two or more existing languages; may occur when people who share no native language need to communicate, or when a language of one group becomes used for wider communication.
- Lingua franca : Any language used for widespread communication between groups who do not share a native language or where native speakers are typically in the minority; name from 'Lingua Franca', a pidgin once used around the Mediterranean.
- Germanic languages : Branch of the Indo-European language family, initially spoken in northern and central Europe and now spread over many parts of the world.
- Romance languages : Branch of the Indo-European language family, originally spoken in southern, eastern and western Europe and descended from Vulgar Latin, the language of the Ancient Romans; includes modern Spanish, Portuguese, French, Italian and Romanian.