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Definition of soundproof
soundproof
/ˈsaʊnd.pruːf/
sound · proof
Past Simple:soundproofed
•Past Participle:soundproofed
•Present Participle:soundproofing
soundproof Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Top 10k
Syllables
2
soundproof Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Resistant to the passage of sound; preventing sound from entering or leaving a space.
Example
"The recording studio was built with thick, soundproof walls to block out street traffic."
Synonyms
View all synonyms for soundproof• verb
1
To make a room, building, or structure resistant to the passage of sound.
Example
"They decided to soundproof the basement so the band could practice without disturbing the neighbors."
Synonyms
View all synonyms for soundproof• Nearby Words
Cite this Entry
Wordmom. (2026). Definition of Soundproof. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/soundproof