Affricate - A consonant sound produced by starting with a stop and releasing it into a fricative (e.g., "ts" in "cats")., Diachronic - Studying language change over time (e.g., how English pronunciation has evolved)., Etymology - The study of the origin and history of words., Grapheme - A written symbol representing a sound or unit in a writing system, Morphology - The study of how words are formed,

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