interlanguage

Noun

1. A language generated by a student of a foreign 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.
   • The learner's selection from his/her store of interlanguage rules is not haphazard but systematic and predictable, based as it is on his/her existing rule system in much the same way as the native speaker bases his/her...
2. A lingua franca, a common language used by speakers of different languages
   • Latin used to be the European interlanguage. Currently English widely serves this purpose.
   • As [David] Bellos points out, those born as English speakers are now a minority of English speakers: most speak it as a second language. English is the world’s biggest interlanguage. - 2011 October 28, Adam Thirlwell,...

   Synonyms: koine lingua franca

3. A pidgin or creole