vowel heightn. the degree to which the tongue is raised or lowered in the pronunciation of a particular vowel.
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the mind > language > linguistics > study of speech sound > speech sound > vowel > [noun] > degree to which tongue is raised or lowered
vowel height1977
1977 Archivum Linguisticum8 71 This is obscured by a distinctive feature system which uses a binary classification of [±high] and [±low] to define vowel height.