soundproof
Intermediate (B1)
IPA: /ˈsaʊndpruːf/
KK: /ˈsaʊndˌpruf/
adjective
Definition
Not able to let sound pass through; designed to block or reduce noise.
Example
The studio was completely soundproof, allowing the musicians to record without any outside noise.
Conversation
Have you seen the new studio they're building downtown?
Yeah, I heard it's going to be soundproof so musicians can record without interruptions.
That sounds amazing! I wish my room was soundproof too.
Right? It would be so nice to block out all that noise from the street.
Synonyms & Antonyms
Synonyms
insulated
sealed
quiet
Antonyms
noisy
loud
audible
verb
Definition
To make a room or area unable to let sound pass through, so that noise cannot be heard from outside.
Example
They decided to soundproof the studio to avoid disturbing the neighbors during recording.
Tense Forms
Past: soundproofed
Past Participle: soundproofed
Conversation
I was thinking about how to soundproof my room from all the noise outside.
That’s a great idea! It can get really loud sometimes.
Yeah, I want to create a quiet space for studying.
Root Explanation
Soundproof → It is formed from "sound" (from Old English *sund*, meaning noise or auditory sensation) and "proof" (from Old English *prufian*, meaning to test or to prove). The word "soundproof" means to make something impervious to sound or noise.
Memory Tip
Think of making something that is 'tested' ('proof') against 'noise' ('sound') — that's why soundproof means to block out noise.
Visually Confused Words
sunproof
sundayproof
sandproof
underproof
swordproof
scornproof