Crosslinguistic influence (CLI) is a generic term for different ways in which different language systems in the mind interact and affect either the linguistic performance or the linguistic development (or both) of the individual concerned (Sharwood Smith 1983). This typically refers two different languages, for example the influence of Korean on a Korean native speaker who is learning Japanese or French, although it might, logically but much less typically, be used to refer to an interaction between different dialects or varieties of one language in the mind of a monolingual speaker, for example.