noun \ˈniz\

: a loud or unpleasant sound

: a sound that someone or something makes

: unwanted electronic signals that harm the quality of something (such as a radio or television broadcast or a digital photograph)

Full Definition of NOISE

:  loud, confused, or senseless shouting or outcry
a :  sound; especially :  one that lacks agreeable musical quality or is noticeably unpleasant
b :  any sound that is undesired or interferes with one's hearing of something
c :  an unwanted signal or a disturbance (as static or a variation of voltage) in an electronic device or instrument (as radio or television); broadly :  a disturbance interfering with the operation of a usually mechanical device or system
d :  electromagnetic radiation (as light or radio waves) that is composed of several frequencies and that involves random changes in frequency or amplitude
e :  irrelevant or meaningless data or output occurring along with desired information
:  common talk :  rumor; especially :  slander
:  something that attracts attention <the play … will make little noise in the world — Brendan Gill>
:  something spoken or uttered
:  a style of rock music that is loud, often discordant, and usually uses electronic noise (as feedback)
noise·less \-ləs\ adjective
noise·less·ly adverb

Examples of NOISE

  1. I couldn't hear him over all the noise.
  2. That's not music. To me it's a bunch of noise.
  3. The furnace makes a lot of noise when it comes on.
  4. We closed the windows to block out the traffic noise.
  5. The landlord has been getting complaints from the tenants about noise.
  6. There were noises coming from the basement.
  7. The sink was making a gurgling noise.
  8. Do you hear that rattling noise?
  9. The machine hardly makes any noise.
  10. The initial data included a lot of noise that had to be weeded out.

Origin of NOISE

Middle English, from Anglo-French, disturbance, noise, from Latin nausea nausea
First Known Use: 13th century

Other Electrical Engineering Terms

feedback, fuse, incandescent, resonance

Rhymes with NOISE



Definition of NOISE

intransitive verb
:  to talk much or loudly
:  to make a noise
transitive verb
:  to spread by rumor or report —usually used with about or abroad <the scandal was quickly noised about>

First Known Use of NOISE

14th century


noun    (Concise Encyclopedia)

Undesired sound that is intrinsically objectionable or that interferes with other sounds being listened to. In electronics and information theory, noise refers to those random, unpredictable, and undesirable signals, or changes in signals, that mask the desired information content. In radio, this noise is called static; in television, it is called snow. White noise is a complex signal or sound covering the entire range of component frequencies, or tones, all of which possess equal intensity.


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