noise meaning

• Noun: noise  noyz
  1. 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" 
  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
     - 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. Incomprehensibility resulting from irrelevant information or meaningless facts or remarks
     "all the noise in his speech concealed the fact that he didn't have anything to say" 
  6. The quality of lacking any predictable order or plan
     - randomness, haphazardness, stochasticity
  Verb: noise  noyz
  1. Emit a noise
     - make noise, resound

  Derived forms: noised, noising, noises

  See also: noisy

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

  Encyclopedia: Noise, Vibration, and Harshness Noise Noise, vibration and harshness Noise, vibration, and harshness

• 
  [American slang]
  n. empty talk; nonsense.
  • I've had enough of your noise. Shut up!
  • That's nothing but noise. I want the truth.
  
  
• 
  [Architecture]
  

  Any sound which is unwanted because it is annoying, interferes with speech and hearing, or is intense enough to damage hearing.

• 
  [Business]
  noun [U]

  1

  extra information, activity, etc. that is not what is needed:

  In all the noise of the Internet, I eventually found something relevant.

  Get rid of the noise and focus on your core activities.

  2 (Technical )

  extra electrical or electronic signals that are not part of the signal that is being broadcast or sent

  IDIOMS

  make noises (about sth) (informal)

  to talk in an indirect way about sth that you think you might do:

  The company has been making noises about closing several factories.


[Economics]
In statistics, random fluctuations in data.
• 
  [Electronics]
  1. A random-frequency current or voltage signal extending over a considerable frequency spectrum and having no useful purpose, unless it is intentionally generated for test purposes.
  2. Dissonant, interferential sound; unlike harmonious sound, it is disagreeable.
  3. In audio operations, unwanted hiss and/or hum.
  4. Extra bits or bytes that must be removed from digital data before it can be useful.
  
• 
  [Finance]
  Price and volume fluctuations that can confuse interpretation of market direction. Used in the context of general equities. Stock market activity caused by program trades, dividend rolls, and other phenomena not reflective of general sentiment. Antithesis of real.
• 
  [Computer]
  <communications> Any part of a signal that is not the true or original signal but is introduced by the communication mechanism.
  
  A common example would be an electrical signal travelling down a wire to which noise is added by inductive and capacitive coupling with other nearby signals (this kind of noise is known as "crosstalk").
  
  A less obvious form of noise is quantisation noise, such as the error between the true colour of a point in a scene in the real world and its representation as a pixel in a digital image.

• accounting noise:    [Finance]The effec ...
• acoustic noise:    [Electronics]Inter ...
• aerodynamic noise:    [Architecture]Nois ...

Examples

1. i request them to stop making such a noise ..
2. i was confused by the loud noise in the room.
3. there must be a threshold of thermal noise.
4. the neighbours complained of the noise.
5. noise will probably not hurt the airstream.