noun Date: 1504 a thin resonant board (as the belly of a violin) so placed in an instrument as to reinforce its tones by sympathetic vibration, sounding board 1a, sound card
SOUNDBOARD
Meaning of SOUNDBOARD in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012