1) Articulate 2) Enounce 3) Enunciate 4) Express or state clearly 5) Pronounce 6) Pronounce as a vowel 7) Sing with the same vowel 8) Sound 9) Sound out 10) To sing without using words 11) Utter speech sounds 12) Vocalise 13) Voice 1) Chirk 2) Enunciate 3) Intone 4) Phonate 5) Pronounce 6) Say 7) Sing 8) Vocalise 9) Vowelise 10) Vowelize 
• (v. t.) To practice singing on the vowel sounds. • (v. t.) To form into voice; to make vocal or sonant; to give intonation or resonance to.
Vo'cal·ize transitive verb [ imperfect & past participle Vocalized ; present participle & verbal noun Vocalizing .] [ Confer French vocaliser .] 1. To form into voice; to make vocal or sonant; to give intonation or resonan...
[v] - sing with one vowel 2. [v] - pronounce as a vowel 3. [v] - utter speech sounds
vocalize, vocalizing, vocalized 1. To make vocal; to utter, to say, or to sing. 2. To provide a voice for; to render articulate. 3. To mark with vowel points, as a Hebrew text. 4. In phonetics, to change to or to use as a vowel; to voice. 5. To produce sounds with the voice, as in speaking or singing.
verb utter speech sounds