0 a person or group of people that you use to test something such as a new idea or suggestion to see if they will accept it or if they think it will work
1 someone you use to test a new idea or suggestion to see if it is liked:
The psychiatrist serves as a sounding board, offers support (not personal opinion), and assists the patient in effective decision-making.
A basso profundo in conventional terms, his technique involves letting the voice resound in the space, making the walls of the church the sounding board of his vocal instrument.
A visit by the primary care physician may be helpful, not so much to advise about the infant's problem, but to be a support and sounding board for the parents.
This is the forum and sounding board where those who can speak with authority on these questions can speak and be heard throughout the country.
It has no formal terms of reference, but acts as a sounding board on technical tax matters of current interest.
It will be acceptable to them and will serve as a sounding board for these experiments.
These discussions have provided an important sounding board for our proposals.
After all, this place is a great sounding board.
