Soundboard (noun)

1. A large panel in a musical instrument, such as a piano or guitar, that vibrates to produce sound.
2. A flat piece of wood or other material used to amplify the sound of a stringed instrument.

Origin:

The word 'soundboard' is derived from the combination of the words 'sound' and 'board'.

Examples:

1. The soundboard of a piano is a crucial component in creating its sound.
2. The soundboard of a guitar amplifies the vibrations of the strings.
3. A high-quality soundboard is essential for a great sounding piano.
4. The soundboard on a harp is responsible for projecting the sound of the strings.
5. A well-made soundboard can make all the difference in the sound of a stringed instrument.