English Dictionary

sounding board

noun

A thin board that forms part of the resonating chamber of a musical instrument and serves to reinforce its sound / A structure that reflects sound towards the intended listeners

I use my best friend as a sounding board for my ideas.

意味（1）

A thin board that forms part of the resonating chamber of a musical instrument and serves to reinforce its sound

意味（2）

A structure that reflects sound towards the intended listeners

意味（3）

(by extension) Any device or means used to spread an idea or point of view

Missandei had little interiority beyond being Dany’s sounding board and Grey Worm’s lover, and she had to die to give them both a reason to keep killing, even though you’d think the looming Last War is reason enough.

意味（4）

A person, or group, whose reactions to a new idea or proposal serve to assess its acceptability