adjective
soundproof
adjective
1
Built or treated so that sound cannot pass through.
"The recording studio has soundproof walls."
verb
1
To treat a room or object so that it blocks sound from passing in or out.
"They soundproofed the garage before turning it into a home studio."
How to Use Soundproof
Learner’s notesIn plain EnglishAble to block sound, or the act of making something block sound.
Common pairings
soundproof room
soundproof the walls
Word Forms
more soundproof comparative, soundproofed past tense, soundproofs singular, most soundproof superlative
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Etymology
From sound + -proof, on the pattern of waterproof and fireproof.