Dictionary

1soundproof

adjective sound·proof \ˈsan(d)-ˌprüf\

: not allowing sound to enter or leave

Full Definition of SOUNDPROOF

:  impervious to sound
ADVERTISEMENT

First Known Use of SOUNDPROOF

circa 1878

2soundproof

transitive verb

: to make (something) soundproof

Full Definition of SOUNDPROOF

:  to insulate so as to obstruct the passage of sound

First Known Use of SOUNDPROOF

1919
SOUNDPROOF Defined for Kids

soundproof

adjective sound·proof \ˈsand-ˈprüf\

Definition of SOUNDPROOF for Kids

:  capable of keeping sound from entering or escaping

Browse

Next Word in the Dictionary: soundprooferPrevious Word in the Dictionary: sound projectorAll Words Near: soundproof
ADVERTISEMENT
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears