Vō'cal-ize, v. t.
[imp. & p. p. VOCALIZED; p. pr. & vb. n. VOCALIZING.] [Fr. vocaliser, Sp. vocalizar, It. vocalizzare.]
Sense 1. To form into voice; to make vocal or sonant; to give intonation or resonance to.
It is one thing to give impulse to breath alone, and another to vocalize that breath. Holder.
Sense 2. To practice singing on the vowel sounds.