interlanguage

plural interlanguages

1. A language generated by a student of a foreign language that incorporates aspects of their native language and the target 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 speech on the internalized knowledge of the L1 system.

   2011, Anna Trosborg, Interlanguage Pragmatics: Requests, Complaints, and Apologies, Walter de Gruyter, →ISBN, page 54

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.

   1 more example

   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, “The Joyful Side of Translation”, in The New York Times, →ISSN, archived from the original on 12 Nov 2020

   Synonyms: koine, lingua franca

3. A pidgin or creole