Sounding-Board
From BiblePortal Wikipedia
Sounding-Board [1]
(1):
(n.) A board or structure placed behind or over a pulpit or rostrum to give distinctness to a speaker's voice.
(2):
(n.) See Sound boarding, under Sound, a noise.
(3):
(n.) A thin board which propagates the sound in a piano, in a violin, and in some other musical instruments.
