Dialect

Webster's Dictionary of the English Language

·noun Means or mode of expressing thoughts; language; tongue; form of speech.

II. Dialect ·noun The form of speech of a limited region or people, as distinguished from ether forms nearly related to it; a variety or subdivision of a language; speech characterized by local peculiarities or specific circumstances; as, the Ionic and Attic were dialects of Greece; the Yorkshire dialect; the dialect of the learned.