Thesaurus
A really fast thesaurus... with lots of synonyms.
soundproof (27 synonym found)
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Definition of soundproof:
(adj) :
describing something that does not allow sound through
"the contestant was placed in a soundproof booth so he could not receive help from the audience."
Definition of soundproof:
(adj) :
describing something that does not allow sound through
"the contestant was placed in a soundproof booth so he could not receive help from the audience."