A diphthong is a complex vowel sound that begins with one vowel sound and glides into another within the same syllable. It involves a noticeable change in the quality of the vowel sound during its pronunciation. In English, examples of diphthongs include sounds like "ai" in "rain," "ou" in "out," and "oy" in "boy." Diphthongs are important in phonetics because they add variety to vowel sounds and can affect the meaning of words. Understanding diphthongs is essential for accurate pronunciation and phonetic transcription in language.

Définition et signification de « diphthong » en anglais

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