1853, from sound (n.1) + proof (n.).

Online Etymology Dictionary, © 2010 Douglas Harper

Examples from the Web for sound-proof

Contemporary Examples of sound-proof

Historical Examples of sound-proof

  • The rapping sounded muffled and dim in that sound-proof place.

    The Yellow Claw

    Sax Rohmer

  • Pity there isn't a sound-proof room for practising in this school.

    Loyal to the School

    Angela Brazil

  • In a moment I was within and had swung shut and sealed the sound-proof door.

  • There were no windows, and it appeared to be a kind of sound-proof call-box, which indeed it was.


    William McFee

  • When the operator informed him that San Pasqual was on the line, Mr. Hennage went into a sound-proof booth and told a lie.

    The Long Chance

    Peter B. Kyne