1. Sound of any kind (especially unintelligible or dissonant sound)
   "during the firework display that ended the gala the noise reached 98 decibels"; "he enjoyed the street noises"; "they heard indistinct noises of people talking"
    
2. The auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience
   "modern music is just noise to me";
   - dissonance, racket
    
3. Electrical or acoustic activity that can disturb communication
   "The noise on the phone line made it difficult to hear the conversation";
   - interference, disturbance
    
4. A loud outcry of protest or complaint
   "the announcement of the election recount caused a lot of noise"; "whatever it was, he didn't like it and he was going to let them know by making as loud a noise as he could"
    
5. Distracting, meaningless, or irrelevant content that obscures the main message
   "all the noise in his speech concealed the fact that he didn't have anything to say"
    
6. [informal] Speculation, rumours or empty talk
   "There's a lot of noise about the company merger"
    
7. Random variations that interfere with or obscure the clarity of a signal or data
   "The scientist worked to filter out the noise from the sensor readings"

1. Emit a noise
   "The old pipes made noise throughout the night";
   - make noise, resound

Derived forms: noises, noised, noising

Type of: auditory sensation, call, cry, go, incomprehensibility, outcry, shout, sound, trouble, vociferation, yell

Encyclopedia: Noise, occupational