soundproof

1 of 2

adjective

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

soundproof

2 of 2

verb

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Guests who are sensitive sleepers may prefer one of the rooms towards the property's back courtyards; while soundproof windows throughout keep out most noise, drumming and dance performances are a daily occurrence at sunset in the square facing the hotel. Carley Rojas Ávila, Forbes.com, 15 Aug. 2025 There’s also a soundproof dark room with bean bag chairs and a motion light that simulates a starry sky. Anna Ortiz, Chicago Tribune, 22 July 2025
Verb
The network spent $25,000 installing broadcast equipment and soundproofing the house. Thomas Doherty, HollywoodReporter, 15 Aug. 2025 San Diego International Airport has been awarded $15 million in federal funds that will go a long way toward soundproofing hundreds of nearby homes impacted by the roar of arriving and departing planes. Lori Weisberg, San Diego Union-Tribune, 10 July 2025 See All Example Sentences for soundproof

Word History

First Known Use

Adjective

circa 1878, in the meaning defined above

Verb

1919, in the meaning defined above

Time Traveler
The first known use of soundproof was circa 1878

Browse Nearby Words

Cite this Entry

“Soundproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/soundproof. Accessed 9 Sep. 2025.

Kids Definition

soundproof

adjective
sound·​proof
ˈsau̇n(d)-ˈprüf
: designed to prevent sound from entering or leaving
soundproof verb

More from Merriam-Webster on soundproof

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