sound·​proof | \ ˈsau̇n(d)-ˌprüf How to pronounce soundproof (audio) \

Definition of soundproof

 (Entry 1 of 2)

: impervious to sound


soundproofed; soundproofing; soundproofs

Definition of soundproof (Entry 2 of 2)

transitive verb

: to insulate so as to obstruct the passage of sound

Examples of soundproof in a Sentence

Recent Examples on the Web: Adjective The pods looked like living-room-size sensory-deprivation tanks, dim, plush and soundproof, decorated in soothing colors in order to promote focus on the unseen voice. New York Times, "How Nothingness Became Everything We Wanted," 19 Jan. 2021 On the other side of the balcony’s soundproof wall, 20 to 25 new seats will be added above the existing 645 downstairs. Jeremy Hallock, Dallas News, "Upstairs in the Texas Theatre, a whole new auditorium is taking shape," 9 Dec. 2020 Previous developments of soundstages, as these facilities are known because they are designed to be soundproof, have had transformative effects. New York Times, "Lights, Camera, Construction!," 4 Dec. 2020 Fixing the debates: Option 1: Candidates speak from soundproof booths; moderator cuts mic of whoever doesn’t have the floor. Star Tribune, "Readers Write: Presidential debate, Amy Coney Barrett's nomination," 30 Sep. 2020 Other noteworthy aspects of the home include a soundproof theater, an aquarium-style room with a triangular fish tank, a game room, and three fireplaces. Kelly Corbett, House Beautiful, "See Inside Shaq's $19.5 Million Orlando Mega-Mansion," 9 Sep. 2020 The soundproof chamber was comfortable, with a sitting room, shower, and small kitchen, but all clues to the time of day—such as a clocks, radio, or telephone—were banished. Jo Marchant, Wired, "The Oysters That Knew What Time It Was," 1 Sep. 2020 His piano is electric, and the headphones soundproof. Gernot Wagner,, "Cities Hold the Key to a Low-Carbon Economy," 29 Aug. 2020 On the balmy New Orleans campus, Tulane students walk single file on separated paths, sit one or two seats apart, and shout answers to professors behind the nearly soundproof plexiglass shields. Stephen Collinson And Shelby Rose With Caitlin Hu, CNN, "Forget the 2020 election. Let's talk 2024," 29 Aug. 2020 Recent Examples on the Web: Verb In recent months, Israel has suggested that his students soundproof themselves instead, by using rubber pads that go over drum heads and cymbals or electronic drum sets. New York Times, "How to Soundproof a Room," 12 Jan. 2021 Take on a new instrument without properly soundproofing your room first. New York Times, "Being a Good Roommate During Coronavirus: Dos and Don’ts," 11 Apr. 2020 The project was supposed to pay for soundproofing at 650 homes over 10 years and cost about $15 million, paid for mostly by the FAA. Michelle Theriault Boots, Anchorage Daily News, "Readers had lots of questions about airplane noise from the airport’s runway closure. Here are some answers.," 10 July 2018 Simple design changes could include soundproofing rooms, installing heavier doors and quieter laundry machines and dishwashers. Kaya Laterman, New York Times, "Outfitting a Home for a Child on the Autism Spectrum," 13 Mar. 2020 Each cocoon offers a high degree of soundproofing to keep the noise out and employs luxe touches like solid oak, soft mood lighting, Egyptian cotton sheets, and a bathroom chock-full of Malin+Goetz toiletries nestled next to a rain shower. Jp Mangalindan, Fortune, "Inside a sleep and wellness hotel that rents out minimalist ‘cocoons’," 25 Feb. 2020 More than 500 homes near the field will likely be ineligible for soundproofing, according to an analysis by the City of Madison. Patrick Marley, Milwaukee Journal Sentinel, "Lawmakers to take up bills that make lemonade stands legal, sex with animals a felony," 8 Oct. 2019 The two dining rooms are softly lit and soundproofed, thanks to carpet on the floor, linens on the tables and tufted fabric on the walls. Tom Sietsema, Washington Post, "Tom Sietsema’s 7 favorite places to eat (and drink) right now — plus one to avoid," 24 June 2019 In 1981, the FAA established DNL 65 decibels as the guideline at which federal funding is available for soundproofing, which can include new doors and windows for houses impacted by high jet noise levels. Mary Wisniewski,, "Long wait for FAA noise study raises questions: Quigley," 3 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'soundproof.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of soundproof


circa 1878, in the meaning defined above


1919, in the meaning defined above

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Time Traveler for soundproof

Time Traveler

The first known use of soundproof was circa 1878

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Last Updated

2 Feb 2021

Cite this Entry

“Soundproof.” Dictionary, Merriam-Webster, Accessed 3 Mar. 2021.

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More Definitions for soundproof



English Language Learners Definition of soundproof

 (Entry 1 of 2)

: not allowing sound to enter or leave



English Language Learners Definition of soundproof (Entry 2 of 2)

: to make (something) soundproof


sound·​proof | \ ˈsau̇nd-ˈprüf How to pronounce soundproof (audio) \

Kids Definition of soundproof

: capable of keeping sound from entering or escaping

More from Merriam-Webster on soundproof

Thesaurus: All synonyms and antonyms for soundproof

Nglish: Translation of soundproof for Spanish Speakers

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