The AI-powered English dictionary
comparative more soundproof, superlative most soundproof
Not allowing sound through. examples
third-person singular simple present soundproofs, present participle soundproofing, simple past and past participle soundproofed
To make resistant to transmitting sound. quotations examples
It almost goes without saying that the train is fully soundproofed, with double-glazed windows and highly efficient air-conditioning by the British firm of J. Stone.
1960 March, G. Freeman Allen, “Europe's most luxurious express - the "Settebello"”, in Trains Illustrated, page 141
Soundproofing a room may be as simple as sealing gaps around a door, or it may require rebuilding an entire wall or lowering a ceiling.
1980, Robert M. Jones, editor, Walls and Ceilings, Time-Life Books, page 114