soundproof

[ sound-proof ]

adjective

1. impervious to sound.

verb (used with object)

1. to cause to be soundproof.

soundproof

/ ˈsaʊndˌpruːf /

adjective

1. not penetrable by sound

verb

1. tr to render soundproof

Other Words From

• soundproofing noun

Word History and Origins

Origin of soundproof¹

First recorded in 1875–80; sound ¹ + -proof

Example Sentences

They have also told the ANC and nearby residents they have taken steps to soundproof the building, which they are renting, to ensure their plans to operate a dance bar with music from a DJ on the second floor will not disturb nearby residents.

From Washington Blade

At $549, the Airpods Max price demands a serious premium over other soundproof headphones in the space.

From Popular-Science

Passenger room is snug and the cabin isn’t exactly soundproof.

From Washington Blade

There would have been no birth certificates because Dugard was forced her to give birth in a soundproof structure in the backyard.

From The Daily Beast

They were within ten yards of the plane when a wail of anguish was born—and died—in two soundproof helmets.

From Project Gutenberg

The wireless office was soundproof and practically airtight.

From Project Gutenberg

The booth was soundproof and all the lad did was to drop coins.

From Project Gutenberg

But even if they had time to look it up, which they didn't, the contestant couldn't hear them in a soundproof booth.

From Project Gutenberg

I suggested that, folding-doors not being soundproof, I had better wait downstairs.

From Project Gutenberg