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Subdialect (from Latin sub-, "under", and Ancient Greek διάλεκτος, "discourse") is a linguistic term designating a dialectological category between the levels of dialect and idiolect. Subdialects are basic subdivisions of a dialect. Subdialects can be divided further, ultimately down to idiolects. Normally subdialects of one dialect are quite close to each other, differing mainly in pronunciation and certain local words.