SOUNDPROOF


Meaning of SOUNDPROOF in English

I. ˈsau̇n(d)-ˌprüf adjective

Date: circa 1878

: impervious to sound

II. transitive verb

Date: 1919

: to insulate so as to obstruct the passage of sound

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.