Sound level refers to the intensity of sound, measured in decibels (dB). It quantifies how loud or soft a sound is, with higher dB values indicating louder sounds. For example, a whisper might be around 30 dB, while a rock concert can reach levels of 120 dB or more. Sound levels are important in various fields, including acoustics, music, and environmental science. Understanding sound levels helps in assessing noise pollution, designing soundproof spaces, and ensuring safe listening environments to protect hearing health.