Many languages use rounded vowels to distinguish between front and back vowel sounds.

Linguists compared the back vowels across dialects to determine how tongue position affects pronunciation.

During the workshop, the instructor demonstrated how front vowels change when the tongue moves forward.

During the phonics workshop, the teacher demonstrated how to pronounce short vowels clearly.

In phonetics class, we analyzed how lax vowels contrast with tense vowels in English.

Linguists compared the tense vowels of several dialects to determine patterns of vowel lengthening.

The choir practiced the happy vowels until their smiles matched the melody.

Linguists debated whether overlong vowels should be transcribed with a triple-length marker.

Linguists analyzed the acoustic properties of dark vowels in the dialect.

The linguist identified several prop vowels in the dialect and explained their role in supporting adjacent consonants.