Here's why:
* Dialect refers to a variety of a language spoken in a particular region or by a particular group of people. It includes variations in pronunciation, vocabulary, grammar, and even figures of speech.
* Figures of speech are specific forms of expression that go beyond the literal meaning of words to create an effect. These can be idioms, metaphors, similes, and other rhetorical devices.
Therefore, a specialized language including figures of speech identified with a particular region is best described as a dialect.
Let me know if you have any other questions!