soundproof

[ sound-proof ]
See synonyms for soundproof on Thesaurus.com
adjective
  1. impervious to sound.

verb (used with object)
  1. to cause to be soundproof.

Origin of soundproof

1
First recorded in 1875–80; sound1 + -proof

Other words from soundproof

  • soundproofing, noun

Words Nearby soundproof

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use soundproof in a sentence

  • The wireless office was soundproof and practically airtight.

    Pincher Martin, O.D. | H. Taprell Dorling
  • The booth was soundproof and all the lad did was to drop coins.

    Whispering Wires | Henry Leverage
  • But even if they had time to look it up, which they didn't, the contestant couldn't hear them in a soundproof booth.

  • I suggested that, folding-doors not being soundproof, I had better wait downstairs.

    Rebel women | Evelyn Sharp

British Dictionary definitions for soundproof

soundproof

/ (ˈsaʊndˌpruːf) /


adjective
  1. not penetrable by sound

verb
  1. (tr) to render soundproof

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012