Answer: vocalizing

AnswerCrossword Clue
vocalizingChange (a consonant) to a semivowel or vowel
vocalizingVOCALIZE, to produce with the voice, also VOCALISE
vocalizingExpress (something) with words
vocalizingUtter (a sound or word)
vocalizingWrite (a language such as Hebrew) with vowel points
vocalizingSing with several notes to one vowel