Vo·cal·ize v. t. [imp. & p. p. Vocalized p. pr. & vb. n. Vocalizing ]
  1. To form into voice; to make vocal or sonant; to give intonation or resonance to.
     It is one thing to give an impulse to breath alone, another thing to vocalize that breath.   --Holder.
  2. To practice singing on the vowel sounds.
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  vocalizing
       n : the act of singing vocal music [syn: singing]