Definition of devoice verb from the Oxford Advanced American Dictionary

 

devoice

 verb
verb
NAmE//ˌdiˈvɔɪs//
 
devoice something(phonetics)Verb Forms present simple I / you / we / they devoice
 
he / she / it devoices
 
past simple devoiced
 
-ing form devoicing
 
 
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to make a speech sound, usually a consonant, voiceless
See the Oxford Advanced Learner's Dictionary entry: devoice