English

Definition of audio adjective from the Oxford Advanced Learner's Dictionary

 

audio

 adjective
adjective
BrE BrE//ˈɔːdiəʊ//
 
; NAmE NAmE//ˈɔːdioʊ//
 
[only before noun]
 
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connected with sound that is recorded audio and video cassettes Word Origin 1930s: independent usage of audio-.
See the Oxford Advanced American Dictionary entry: audio