Definition of sound box in English:

sound box

Syllabification: sound box
(also soundbox /ˈsoun(d)ˌbäks/)

noun

The hollow chamber that forms the body of a stringed musical instrument and provides resonance.
More example sentences
  • Unlike modern harps, the soundbox would have be hollowed out from a single piece of wood and finished with a thin panel to ‘seal’ the sound box.
  • The double psaltery had two ranks of strings, one on either side of the soundbox.
  • The addition of the forepillar to the soundbox and string-arm greatly strengthened the instrument's structure, allowing the use of greater string tension and stiffer string materials.