Subdialect (from Latin , "under", and Ancient Greek , diálektos, "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. Subdialects of one dialect are generally quite close to each other, differing mainly in pronunciation and certain local words.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).