Definition

1. Noun:
   • A thin board in a musical instrument that vibrates to amplify sound: In music, a sounding board is a resonator, typically a thin piece of wood, that strengthens the sound produced by an instrument like a piano or guitar.
   • A person or group used to test ideas or opinions: A sounding board is a person whose reactions are used to gauge the potential success, acceptability, or clarity of a plan, policy, or idea before it is finalized or made public.

Usage Examples

• Noun (Musical Instrument Part):

  • The piano's rich tone depends heavily on the quality of its sounding board.
  • The luthier carefully selected spruce for the guitar's sounding board.

• Noun (Person for Testing Ideas):

  • Before the speech, the politician used her chief of staff as a sounding board.
  • I often use my colleagues as a sounding board for new project concepts.

Advanced Usage

• "to act as a sounding board for someone": To serve as a person who listens and gives feedback.

  • As a manager, part of my role is to act as a sounding board for my team's concerns.

• "to use something as a sounding board": To employ a group or forum to test reactions.

  • The company used the focus group as a sounding board for the new advertising campaign.

Variants and Related Words

• Soundboard (noun): A common alternative spelling for the musical instrument component. (e.g., ).
• Resonator (noun): A more general term for a device that increases sound by vibration.

Synonyms

• Noun (Person): Advisor, consultant, tester, feedback source.
• Noun (Object): Resonator, diaphragm.

Related Phrases

• To bounce ideas off someone: This informal phrase is conceptually similar to using someone as a sounding board.
  • She bounced her ideas off her mentor before writing the proposal.

Related Idioms

• A trial balloon: This idiom refers to an idea or plan presented to gauge public reaction, which is a similar concept to using a person as a sounding board but on a larger, often public, scale.
  • The article was a trial balloon for the proposed tax reforms.

Noun

1. (music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument
2. a person whose reactions to something serve as an indication of its acceptability
   • I would use newspapermen as a sounding board for such policies