soundproof 1 of 2

adjective

Definition of soundproofnext
as in waterproof

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Dissimilar Words

soundproof

2 of 2

verb

as in to insulate

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Example Sentences

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.
Recent Examples of soundproof
Adjective
Inside of the massive buildings, hundreds of servers hum within gigantic soundproof and waterproof chambers. — Jessica Hill, Fortune, 9 Apr. 2026 The interior common door [had been] flimsy and not very soundproof. — Kelly McGreal, FOXNews.com, 30 Mar. 2026
Verb
Head to the backside of the library, where architects used glass partitioning and rammed earth to nearly soundproof the space from both Caltrain horns and the children’s area. — Linda Zavoral, The Mercury News, 24 Mar. 2025 In New York there was a black site above a bustling food court, the windows darkened and the rooms soundproofed so that the screaming never reached the people sitting below. — Lidija Haas, Harper's Magazine, 3 Mar. 2025 See All Example Sentences for soundproof
Recent Examples of Synonyms for soundproof
  1. waterproof
  2. insulate
  3. watertight
  4. airtight
  5. hermetic
Adjective
  • Post reporters visited the Reflecting Pool on June 25 and identified seven locations where the lining — a waterproof membrane that was painted onto the concrete basin — had partially or entirely peeled away.
    — Maura Judkis, Washington Post, 16 July 2026
  • Made from lightweight, waterproof EVA (Ethylene-Vinyl Acetate) rather than leather, these sandals offer the same signature comfort in a more versatile, weather-resistant material.
    — Selene Oliva, Vogue, 16 July 2026
Definition of waterproof
Verb
  • This consists of a thin insulating barrier sandwiched between two layers of superconducting aluminum — which can be tricky to manufacture.
    — Paul Smith-Goodson, Forbes.com, 21 July 2026
  • Analysts from Goldman Sachs estimated in a note last week that enough Mideast pipeline capacity will likely be added to insulate over 45% of pre-war Gulf exports by the end of next year.
    — Jason Ma, Fortune, 19 July 2026
Definition of insulate
Adjective
  • For now, access appears limited to the steadily expanding group of organizations granted access to Claude Mythos Preview through Anthropic’s — not entirely watertight — private Project Glasswing initiative.
    — Robert Hart, The Verge, 9 June 2026
  • Tunnels are also not truly watertight, requiring drainage measures like sump pumps and creating maintenance and reliability issues, the group advised.
    — Skyler Swisher, The Orlando Sentinel, 15 Feb. 2026
Definition of watertight
Adjective
  • Raye and the platoon of ace musicians joining her are as vocally and musically airtight as possible.
    — Melissa Ruggieri, USA Today, 27 Apr. 2026
  • The 1984 Olympics had a relatively airtight contract that protected taxpayers, but that’s not the case this time.
    — Susan Shelley, Daily News, 18 Feb. 2026
Definition of airtight
Adjective
  • The opening moments of this penultimate episode evoke enough genuine idealism and hope to feel like a rare breath of fresh air, holding the hermetic nastiness of the series in sharp relief.
    — Scott Tobias, Vulture, 17 May 2026
  • The idea was first proposed by Cicero and lived on through the hermetic tradition.
    — Literary Hub, Literary Hub, 13 May 2026
Definition of hermetic

Browse Nearby Words

sound (out)
soundproof
soundproofed
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Cite this Entry

“Soundproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/soundproof. Accessed 24 Jul. 2026.

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More from Merriam-Webster on soundproof

Nglish: Translation of soundproof for Spanish Speakers

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