Meaning of “soundproof” in the English Dictionary

"soundproof" in British English

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soundproofadjective

uk /ˈsaʊnd.pruːf/ us /ˈsaʊnd.pruːf/

(of a building or part of a building) not allowing sound to go through:

a soundproof room/wall/studio
soundproof
verb [ T ] uk us

It was a well soundproofed building, so we didn't hear the traffic outside.
soundproofing
noun [ U ] uk /ˈsaʊndˌpruː.fɪŋ/ us /ˈsaʊndˌpruː.fɪŋ/

(Definition of “soundproof” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"soundproof" in American English

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soundproofadjective

us /ˈsɑʊnd·pruf/

not allowing sound to go outside or come inside:

a soundproof television studio

(Definition of “soundproof” from the Cambridge Academic Content Dictionary © Cambridge University Press)

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