Definition of noise

• sound of any kind (especially unintelligible or dissonant sound); "he enjoyed the street noises"; "they heard indistinct noises of people talking"; "during the firework display that ended the gala the noise reached 98 decibels"
• the auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience; "modern music is just noise to me"
• electrical or acoustic activity that can disturb communication