sounding board

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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
• Hypernyms:
person, individual, someone, somebody, mortal, soul
2. (music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument
• Syn:
soundboard
• Topics:
music
• Hypernyms:
resonator, cavity resonator, resonating chamber
• Part Holonyms:
stringed instrument, piano, pianoforte, forte-piano
• Part Meronyms:
sound hole