noise

[noiz]
noun
1.
sound, especially of a loud, harsh, or confused kind: deafening noises.
2.
a sound of any kind: to hear a noise at the door.
3.
loud shouting, outcry, or clamor.
4.
a nonharmonious or discordant group of sounds.
5.
an electric disturbance in a communications system that interferes with or prevents reception of a signal or of information, as the buzz on a telephone or snow on a television screen.
6.
Informal. extraneous, irrelevant, or meaningless facts, information, statistics, etc.: The noise in the report obscured its useful information.
7.
Obsolete. rumor or gossip, especially slander.
verb (used with object), noised, noising.
8.
to spread, as a report or rumor; disseminate (usually followed by about or abroad ): A new scandal is being noised about.
verb (used without object), noised, noising.
9.
to talk much or publicly.
10.
to make a noise, outcry, or clamor.
Idioms
11.
make noises, Informal. to speak vaguely; hint: He is making noises to the press about running for public office.

Origin:
1175–1225; Middle English < Old French < Latin nausea seasickness. See nausea

unnoised, adjective


1. clatter, blare, uproar, tumult. Noise, clamor, din, hubbub, racket refer to unmusical or confused sounds. Noise is the general word and is applied equally to soft or loud, confused or inharmonious sounds: street noises. Clamor and hubbub are alike in referring to loud noises resulting from shouting, cries, animated or excited tones, and the like; but in clamor the emphasis is on the meaning of the shouting, and in hubbub the emphasis is on the confused mingling of sounds: the clamor of an angry crowd; His voice could be heard above the hubbub. Din suggests a loud, resonant noise, painful if long continued: the din of a boiler works. Racket suggests a loud, confused noise of the kind produced by clatter or percussion: He always makes a racket when he cleans up the dishes. 2. See sound1.
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Collins
World English Dictionary
noise (nɔɪz)
 
n
1.  a sound, esp one that is loud or disturbing
2.  loud shouting; clamour; din
3.  See also signal-to-noise ratio any undesired electrical disturbance in a circuit, degrading the useful information in a signal
4.  undesired or irrelevant elements in a visual image: removing noise from pictures
5.  talk or interest: noise about strikes
6.  (plural) conventional comments or sounds conveying a reaction, attitude, feeling, etc: she made sympathetic noises
7.  make a noise to talk a great deal or complain
8.  informal make noises about to give indications of one's intentions: the government is making noises about new social security arrangements
9.  theatre noises off sounds made offstage intended for the ears of the audience: used as a stage direction
 
vb
10.  (tr; usually foll by abroad or about) to spread (news, gossip, etc)
11.  rare (intr) to talk loudly or at length
12.  rare (intr) to make a din or outcry; be noisy
 
[C13: from Old French, from Latin: nausea]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

noise
early 13c., "loud outcry, clamor, shouting," from O.Fr. noise "uproar, brawl" (in modern Fr. only in phrase chercher noise "to pick a quarrel"), apparently from L. nausea "disgust, annoyance, discomfort," lit. "seasickness" (see nausea). Another theory traces the O.Fr. word
to L. noxia "hurting, injury, damage." OED considers that "the sense of the word is against both suggestions," but nausea could have developed a sense in V.L. of "unpleasant situation, noise, quarrel" (cf. O.Prov. nauza "noise, quarrel"). Replaced native gedyn (see din).
Online Etymology Dictionary, © 2010 Douglas Harper
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FOLDOC
Computing Dictionary

noise definition

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.
(2003-07-05)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
Working one bird at a time, the researchers played some loud white noise every
  time the bird sang a particular note.
But the noise in the background was the unmistakable sound of horses being
  traded.
There was a crashing noise-the sound of the magnet warming up.
But when the noise is inside your head and continuous or nearly so, it could
  literally drive you crazy.
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