1

soundproof

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adjective sound·proof \ˈsau̇n(d)-ˌprüf\

Circa 1878

First Known Use of soundproof

circa 1878


2

soundproof

transitive verb sound·proof

Definition of soundproof

  1. :  to insulate so as to obstruct the passage of sound

1919

First Known Use of soundproof

1919


SOUNDPROOF Defined for English Language Learners

1

soundproof

play
adjective sound·proof \ˈsau̇n(d)-ˌprüf\

Definition of soundproof for English Language Learners

  • : not allowing sound to enter or leave


2

soundproof

transitive verb sound·proof

Definition of soundproof for English Language Learners

  • : to make (something) soundproof


SOUNDPROOF Defined for Kids

soundproof

play
adjective sound·proof \ˈsau̇nd-ˈprüf\

Definition of soundproof for Students

  1. :  capable of keeping sound from entering or escaping


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