1. thin wooden plates in musical instruments that vibrate to amplify sound
2. people used to test ideas or get feedback before presenting them publicly
Usage: informal
3. devices or software that play pre-recorded sounds or sound effects

Examples

• The piano’s soundboards were cracked and needed replacement.
• Guitar makers carefully select wood for the soundboards to ensure good tone.
• She used her coworkers as soundboards for her presentation ideas.
• The comedy show used digital soundboards for applause and laughter.
• Radio DJs often have soundboards with various jingles and effects.
• He tested his business plan using friends as soundboards.
• The violin’s soundboards amplify the vibrations from the strings.