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Adjective: soundproof  'sawnd,proof
  1. Impervious to, or not penetrable by, sound
    "a soundproof room"
Verb: soundproof  'sawnd,proof
  1. Insulate against noise
    "Proust had his apartment soundproofed"

Derived forms: soundproofs, soundproofing, soundproofed

See also: imperviable, impervious

Type of: insulate

Encyclopedia: Soundproof