dialect

noun

1. 1

   A variety of a language that is characteristic of a particular area, community or social group, differing from other varieties of the same language in relatively minor ways as regards grammar, phonology, and lexicon.

2. 2

   Language that is perceived as substandard or wrong.

3. 3

   A language existing only in an oral or non-standardized form, especially a language spoken in a developing country or an isolated region.

4. 4

   A lect (often a regional or minority language) as part of a group or family of languages, especially if they are viewed as a single language, or if contrasted with a standardized idiom that is considered the 'true' form of the language (for example, Cantonese as contrasted with Mandarin Chinese, or Bavarian as contrasted with Standard German).

5. 5

   A variant of a non-standardized programming language.

   “Home computers in the 1980s had many incompatible dialects of BASIC.”

6. 6

   A variant form of the vocalizations of a bird species restricted to a certain area or population.