They provide a sounding board for discussion of the best means of attaining certain of the president's goals.
But the older professor was a great sounding board for the younger one's work, in concept if not in methodology.
Without someone to turn to, without a proper sounding board, research is far too arduous and far too lonely to sustain.
Ford is careful to use them as a sounding board when they make changes to their favorite car.
He will be a great sounding board for everyone in the organization.
British Dictionary definitions for sounding board
Also called soundboard. a thin wooden board in a piano or comprising the upper surface of a resonating chamber in a violin, cello, etc, serving to amplify the vibrations produced by the strings passing across it See also belly (sense 6)
Also called soundboard. a thin screen suspended over a pulpit, stage, etc, to reflect sound towards an audience
a person, group, experiment, etc, used to test a new idea, policy, etc, for acceptance or applicability