impervious to, or not penetrable by, sound; "a soundproof room"; insulate against noise; "Proust had his apartment soundproofed"
Frequently asked questions for soundproof:
How many solutions are there for the crossword clue "SOUNDPROOF"?
There are 31 solutions. The longest is CORROSIONPROOF with 14 letters, and the shortest is PROOF with 5 letters.
How can I find the solution for "SOUNDPROOF"?
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