Internationalization, Localization, and Unicode : Internationalization and Localization : Language

Language
A locale's language is specified by the ISO 639 standard. The following table lists some commonly used language codes.
Because language is correlated with geography, a language code might not capture all the nuances of usage in a particular area. For example, French and Canadian French may use different phrases and terms to mean different things even though basic grammar and vocabulary are the same. Language is only one element of locale.

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