1 of 2


sound·​proof ˈsau̇n(d)-ˌprüf How to pronounce soundproof (audio)
: impervious to sound


2 of 2


soundproofed; soundproofing; soundproofs

transitive verb

: to insulate so as to obstruct the passage of sound

Examples of soundproof in a Sentence

Recent Examples on the Web
The team at Equinox Hotels, which opened its first outpost in New York City in 2019, spent two years working with experts to create temperature-regulating mattresses, soundproof walls and a program of wind-down exercises for its rooms. Kiera Carter, WSJ, 20 Oct. 2023 The studio is located in the McDonough Square area of South Atlanta and features a soundproof green screen room, private meeting room spaces, content rooms, seven luxury lounge areas, and smart conference rooms. Jasmine Browley, Essence, 3 Nov. 2023 McCreath, meanwhile, is behind a soundproof door in a proper radio booth with a tiny triangular window looking out onto the stage. Michael Andor Brodeur, Washington Post, 11 Aug. 2023 Dumbo, one of the most expensive neighborhoods in the city, is a place made possible by soundproof windows. Curbed, 9 Aug. 2023 Several of the lots being advertised — such as soundproof office booths and designer chairs — were also listed in an auction back in January. Jess Weatherbed, The Verge, 10 Aug. 2023 The soundproof theater seats 16 in leather lounge chairs and features a popcorn machine, candy bar and stocked fridge. Kathryn Romeyn, The Hollywood Reporter, 8 June 2023 The new Sky Club also has four soundproof workspaces. Rachel Chang, Travel + Leisure, 26 July 2023 There were earlier reports about a soundproof room being found on Heuermann's property, too, but authorities disputed that claim this week. Sean Neumann, Peoplemag, 25 July 2023
Other changes were less obvious: A smaller central bedroom was soundproofed so Barrett could continue to work as a therapist. Adriane Quinlan, Curbed, 15 Sep. 2023 There was also an exterior door, and the cell had been built to be soundproof, Klamath Falls police said in a news release earlier this month. Jeanine Santucci, USA TODAY, 26 Aug. 2023 Booking details for Casa Cipriani Milano: Courtesy of Casa Cipriani Milano Amenities: Spa, restaurant, two bars, butler service, gym, private parking, soundproofed rooms, blackout curtains, air conditioning Address: Via Palestro, 24, 20121 Milano MI, Italy Our bad! Liam Hess, Vogue, 31 July 2023 Suffolk Police Commissioner Rodney Harrison told CBS New York the vault had a large iron door but wasn't soundproof. CBS News, 27 July 2023 Here’s another excellent way to soundproof a room, but it may be best reserved for when undergoing a remodel. Joseph Truini, Popular Mechanics, 31 May 2023 Phoenix says all housing is banned in areas with loud plane noise, but Tempe believes that apartments are all right if they are soundproofed ― and the team needs Tempe's interpretation to be correct in order for the deal to pencil out financially, according to Coyotes officials. Sam Kmack, The Arizona Republic, 5 Apr. 2023 To figure out whether plants actually were emitting sounds, Hadany and her team commissioned soundproofed acoustic boxes. Katie Hunt, CNN, 30 Mar. 2023 Other interior glitzy highlights include a chef’s kitchen complete with Korean barbecue-style grills, an indoor-outdoor gym and soundproofed movie theater with a 4K laser projector. Spencer Elliott, Forbes, 20 Feb. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'soundproof.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use


circa 1878, in the meaning defined above


1919, in the meaning defined above

Time Traveler
The first known use of soundproof was circa 1878

Dictionary Entries Near soundproof

Cite this Entry

“Soundproof.” Dictionary, Merriam-Webster, Accessed 5 Dec. 2023.

Kids Definition


: designed to prevent sound from entering or leaving
soundproof verb

More from Merriam-Webster on soundproof

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!