Topic summary
Regional dialect

Extracted from the Wikipedia article Dialect.
The term "dialect" is most often used to refer to regional dialects—i.e., linguistic varieties that are spoken in a particular geographical region, distinguished from those of other regions. Varieties associated with groups defined in other ways may be referred to as "dialects", or with more specialized terms such as sociolect (the dialect of a social class) and ethnolect (the dialect of an ethnic group). An idiolect is the unique variety of language used by a particular individual.