1. To utter, to say, to pronounce, or to sing: Not only did the chairman present written minutes regarding the last meeting, but he also vocalized by verbally commenting about them at the next meeting.
2. To provide a voice for; to render articulate: Birds have to vocalize in order to communicate with each other.
3. To produce sounds with the voice, as in speaking or singing: Susan vocalized the poem for her audience as a song at the recital and the audience was enthralled with her interpretation of it.