Lingua franca

A lingua franca (originally Italian for "Frankish language" - see etymology below) is a language that is used between persons who do not have the same mother tongue.[1]

The terms working language, bridge language and vehicular language are used in the same sense.

  1. Viacheslav A. Chirikba, "The problem of the Caucasian Sprachbund" in Pieter Muysken, ed., From Linguistic Areas to Areal Linguistics, 2008, p. 31. ISBN 90-272-3100-1

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