The instrument known for producing sound through the vibration of strings is the violin. Violins, along with other string instruments like cellos, guitars, and harps, create sound when the strings are bowed or plucked, causing them to vibrate. This vibration travels through the air as sound waves, which is then amplified by the instrument's body. The violin is particularly noted for its expressive range and is commonly used in various music genres, from classical to folk. Its versatility and rich tonal quality make it a favorite among musicians and composers alike.