Sounding Board (Noun)
Meaning 1
A person whose reactions to something serve as an indication of its acceptability; "I would use newspapermen as a sounding board for such policies".
Classification
Nouns denoting people.
Hypernyms
Meaning 2
(music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument.
Classification
Nouns denoting man-made objects.