"vocalization" in the noun sense
1. voice, vocalization, vocalisation, vocalism, phonation, vox
the sound made by the vibration of vocal folds modified by the resonance of the vocal tract
"a singer takes good care of his voice"
"the giraffe cannot make any vocalizations"
2. utterance, vocalization
the use of uttered sounds for auditory communication
Source: WordNet® (An amazing lexical database of English)
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