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vowel


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A speech sound, almost invariably forming the main part of a syllable, that involves no significant obstruction of the airstream through the vocal tract. Various features distinguish the sound of one vowel from another, notably whether the front, central part, or back of the tongue is raised, leading to front vowels, central vowels, and back vowels respectively, and how high the tongue is raised towards the roof of the mouth, leading to close vowels, mid vowels, and open vowels. These features are often portrayed on a vowel quadrilateral representing the mouth schematically (see illustration). Compare consonant, semivowel. [French voyelle, from Latin vox a voice]

Vowel quadrilateral

Subjects: Psychology.


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