Related topics
Roundedness
Lip formation during the articulation of a vowel In phonetics, vowel roundedness is the rounding of the lips, or lack thereof, during the articulation of a vowel. It is the degree and kind of labialization of a vowel. In the International Phonetic Alphabet vowel chart, rounded vowels are the ones that appear on the right in each bulleted pair of letters, and the corresponding unrounded vowels are the ones on the left, with [a] (when central) and the unpaired vowels [ɐ] and [ə] being neutral or unspecified.
*As an Amazon Associate I earn from qualifying purchases.