If the language you speak in your region is different in vocabulary, grammar and accent than the main form of the language, you speak a dialect. If your cousin in rural Arkansas can't understand your jokes, blame it on differences in dialect.

Both an accent and a dialect contain variations in pronunciation from the standard form of a language. When you speak a dialect, however, you also use different words and grammar, sometimes to such a degree that speakers of the dialect and the standard form of the language have a hard time understanding each other.

Definitions of dialect
  1. noun
    the usage or vocabulary that is characteristic of a specific group of people
    “the immigrants spoke an odd dialect of English”
    “it has been said that a language is a dialect with an army and navy”
    synonyms: accent, idiom
    see moresee less
    eye dialect
    the use of misspellings to identify a colloquial or uneducated speaker
    a regional dialect of a language (especially French); usually considered substandard
    a strong regional accent, especially an Irish or Scottish accent
    type of:
    non-standard speech
    speech that differs from the usual accepted, easily recognizable speech of native adult members of a speech community
Word Family