1. to change a rounded vowel sound to an unrounded one
Usage: linguistics; phonetics

Examples

• The linguist explained how the vowel unrounds in certain dialects.
• When learning pronunciation, students practice how to unround specific vowel sounds.
• The phonetic change unrounds the back vowels in this language family.
• Historical sound changes show how certain vowels unrounded over time.
• The speech therapist taught the child how to unround the vowel correctly.