Definition of soundproof

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  • soundproof is a valid Scrabble US word with a point value of 16
  • soundproof is a valid Scrabble UK word with a point value of 16
  • soundproof is a valid Words with friends word with a point value of 19

Definition of soundproof

  • impervious to, or not penetrable by, sound (adjective)

    Examples

    1. a soundproof room
  • insulate against noise (verb)

    Examples

    1. Proust had his apartment soundproofed

See definition of soundproof in Merriam Webster