interlanguage (plural interlanguages)
- A language generated by a student of an additional language that incorporates aspects of their native language and the target language.
Trasyanka and Surzhyk are interlanguages: a Belarusian–Russian and a Ukrainian-Russian mixed language.
- A lingua franca, a common language used by speakers of different languages.
- A pidgin or creole.
lingua franca — see lingua franca
pidgin — see pidgin
creole — see creole