English

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

 

soundproof

 adjective
adjective
BrE BrE//ˈsaʊndpruːf//
 
; NAmE NAmE//ˈsaʊndpruːf//
 
(also soundproofed)
 
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made so that sound cannot pass through it or into it a soundproof room

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