soundproof
Americanadjective
verb (used with object)
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soundproofs,
present (3rd person singular)
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soundproofed,
past participle, past
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soundproofing
present participle
adjective
verb
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
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soundproofsimple
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soundproofssimple
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have soundproofedperfect
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has soundproofedperfect
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am soundproofingprogressive
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are soundproofingprogressive
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is soundproofingprogressive
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have been soundproofingperfect progressive
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has been soundproofingperfect progressive
Past
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soundproofedsimple
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had soundproofedperfect
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was soundproofingprogressive
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were soundproofingprogressive
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had been soundproofingperfect progressive
Future
Etymology
Origin of soundproof
Explanation
When you soundproof a room, you insulate it so that less noise can be heard outside it. A musician who records albums in her apartment might soundproof the room in which she keeps her drums. If you practice playing the bagpipes daily, you might want to soundproof your house so you won't bother your neighbors. Alternately, if you record books on tape in your bedroom, you could soundproof the room so that outside noises won't interfere with your work. You can also use soundproof as an adjective: "The party was in a soundproof room in the hotel, so we could turn the music up as loud as we wanted."
Vocabulary lists containing soundproof
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Adjacent to the resort-style pool, is the fully soundproof studio, which comes complete with high ceilings and natural light, and can be used as a workspace, guest quarters, and more.
From MarketWatch ● May 28, 2026
Its standout artifacts include Voltaire’s custom-designed gilded armchair, equipped with a writing desk and drawers, and a re-creation of the bedroom of Marcel Proust, including a piece of his famously cork-lined, soundproof walls.
From The Wall Street Journal ● May 10, 2026
Each person sat in a soundproof room and focused on a fixed cross displayed on a screen.
From Science Daily ● Dec. 23, 2025
Wilson was a longtime teacher at Del Paso Heights Elementary School where he founded the broadcasting club, which had its own windowless, soundproof room.
From Los Angeles Times ● Aug. 23, 2025
The cops must've been called from the inside, because the whole place was soundproof.
From "When I Was the Greatest" by Jason Reynolds
At one point, Burnham stopped to play some chords on a guitar next to a Ukrainian soldier in the back of a soundproofed van, an AFP photographer saw.
From Barron's ● Aug. 24, 2026
In the summer of 2012, prosecutors say, one of those bedrooms was soundproofed.
From The Wall Street Journal ● Jan. 18, 2026
A little office with large windows is going to be soundproofed and turned into a recording/podcast studio, and a rare books room will be open by appointment.
From Los Angeles Times ● Dec. 5, 2024
I’ve got nice recliners, a big screen, high-end projectors, a great sound system and the room is fully soundproofed.
From New York Times ● Oct. 25, 2022
Sometimes I feel like we’re on opposite sides of a soundproofed glass wall.
From "The Sun Is Also a Star" by Nicola Yoon
The Cayenne Electric team clearly spent a lot of its soundproofing coin around the wheel wells.
From The Wall Street Journal ● Sep. 5, 2026
“The main residence was custom-designed by a musician with advanced soundproofing, and includes a home theater, office, formal living room, and five ensuite bedrooms,” according to the listing.
From MarketWatch ● Apr. 23, 2026
Initial findings suggest that the fire was caused by sparklers coming into contact with soundproofing foam installed on the ceiling of the establishment's basement.
From Barron's ● Jan. 10, 2026
Covered with soundproofing foam that was never safety tested, it ignites quickly.
From BBC ● Jan. 9, 2026
He’s an accountant, and because he sometimes works really late hours during tax season, he had the walls filled with extra insulation for warmth and soundproofing.
From "Drums, Girls, and Dangerous Pie" by Jordan Sonnenblick
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
