An acoustic guitar is a musical instrument in the string family. When a
string is plucked, its vibration is transmitted from the bridge,
resonating throughout the top of the guitar. It is also transmitted to the
side and back of the instrument, resonating through the air in the body,
and producing sound from the sound hole.
While the original, general term for this stringed instrument is guitar,
the retronym 'acoustic guitar' - often used incorrectly to indic -
distinguishes it from an electric guitar, which relies on electronic
amplification.