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tr.v. un·voiced, un·voic·ing, un·voic·es
1. (Phonetics & Phonology) to pronounce without vibration of the vocal cords
2. (Phonetics & Phonology) another word for devoice
v. -voiced, -voic•ing. v.t.
1. to pronounce (an ordinarily voiced speech sound) without or with reduced vibration of the vocal cords.v.i.
2. to devoice a speech sound.
Past participle: unvoiced