Hyphenation of soundproof

Wondering how to hyphenate the English word soundproof? This word can be hyphenated and contains 2 syllables as shown below.

sound-proof

Definitions of soundproof:

1.
Insulate against noise
Proust had his apartment soundproofed
2.
Impervious to, or not penetrable by, sound
A soundproof room

Synonyms of soundproof:

adj impervious, imperviable
verb insulate

Last hyphenations of this language