Definition of noise in English:


Syllabification: noise
Pronunciation: /noiz


1A sound, especially one that is loud or unpleasant or that causes disturbance: making a noise like a pig in a trough what’s that rustling noise outside the door?
More example sentences
  • Science is showing that these booming sounds and other loud noises are harming and even killing marine life.
  • The two of them walked towards the back and Gianni flung open the door to Vito's room as a loud noise came from outside.
  • She was cut short when we heard a loud noise outside.
1.1A series or combination of loud, confused sounds, especially when causing disturbance: dazed with the heat and noise vibration and noise from traffic
More example sentences
  • They say the venue is inappropriate and raise fears the event will cause suffering to the deer, loud noise and traffic chaos.
  • The background music is played at an unobtrusive level and there is little or no traffic noise to disturb you.
  • There have been widespread complaints from neighbours over loud noise and the extra traffic on a narrow country road.
1.2 (noises) Conventional remarks or other sounds that suggest some emotion or quality: Clarissa made encouraging noises
More example sentences
  • It traditionally makes critical noises but usually avoids using its veto power.
  • A group of people sitting on the banks of the Todd start shouting at him and making threatening noises.
  • Though the animals could not understand his words, they heard the derision in his tone and responded with offended noises of their own.
2 technical Irregular fluctuations that accompany a transmitted electrical signal but are not part of it and tend to obscure it.
More example sentences
  • Placing them between the transmitter and the antenna reduces broadband noise and other spurious signals radiated by the transmitter.
  • This can often create a lot of noise, reducing the quality of image obtainable.
  • GPS receivers don't yet work well indoors where electrical wiring and other noise can interfere with their faint signals.
2.1Random fluctuations that obscure or do not contain meaningful data or other information: over half the magnitude of the differences came from noise in the data
More example sentences
  • If we turn to constraints that contain random noise, the information content decreases further.
  • The separation was robust against the fluctuation caused by random noise.
  • This statistical outlier apparently represented important information rather than noise.


[with object] (usually be noised about) dated Back to top  
1Talk about or make known publicly: you’ve discovered something that should not be noised about
More example sentences
  • But now I must ask you not to noise it about to anyone.
1.1 [no object] literary Make much noise.


Middle English (also in the sense 'quarreling'): from Old French, from Latin nausea 'seasickness' (see nausea).

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