Word:

Noise

n.1.Sound of any kind.
The heavens turn about in a most rapid motion without noise
to us perceived.
- Bacon.
2.Especially, loud, confused, or senseless sound; clamor; din.
3.Loud or continuous talk; general talk or discussion; rumor; report.
What noise have we had about transplantation of diseases and transfusion of blood!
- T. Baker.
Socrates lived in Athens during the great plague which has made so much noise in all ages.
- Spectator.
4.Music, in general; a concert; also, a company of musicians; a band.
The king has his noise of gypsies.
- B. Jonson.
v. i.1.To sound; to make a noise.
v. t.1.To spread by rumor or report.
[imp. & p. p. Noised ; p pr. & vb. n. Noising.]
All these sayings were noised abroad.
- Luke i. 65.
2.To disturb with noise.
Noun1.Noisenoise - 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.noise - the auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience; "modern music is just noise to me"
Synonyms: dissonance, racket
3.noise - electrical or acoustic activity that can disturb communication
4.noise - 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.noise - 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.noise - the quality of lacking any predictable order or plan
Verb1.noise - emit a noise
Synonyms: make noise, resound
(communications)noise - 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.
ALGOL, Aesopian language, Babel, Bedlam let loose, COBOL, EDP, FORTRAN, Greek, aimlessness, alphabetic data, alphanumeric code, amplitude, angular data, argot, assembler, atmospherics, auditory effect, auditory phenomenon, babble, ballyhoo, bawling, be noisy, binary digit, binary scale, binary system, bit, black spot, blare, blaring, blast, blasting, blind spot, bloom, blooping, bobbery, brawl, brouhaha, bruit about, bug, byte, cacophony, cant, channel, charivari, chirm, cipher, circulate, clangor, clap, clash, clatter, code, command pulses, commands, commotion, communication explosion, communication theory, compiler, computer code, computer language, computer program, confusion of tongues, control signals, controlled quantity, correcting signals, crash, crawling, creeping, cryptogram, data, data retrieval, data storage, dead letter, decoding, definition, discord, discordance, dissonance, disturbance, donnybrook, double Dutch, drift, drunken brawl, dustup, electronic data processing, emit a sound, emptiness, empty sound, encoding, entropy, error, error signals, fade-out, fading, feedback pulses, feedback signals, film data, flap, flare, fracas, free-for-all, fringe area, futility, garble, ghost, gibberish, gift of tongues, glossolalia, gobbledygook, granulation, grid, hard shadow, harshness, hell, hell broke loose, hexadecimal system, howl, hue and cry, hullabaloo, image, inanity, information, information explosion, information theory, input data, input quantity, insignificance, instructions, interference, jangle, jar, jargon, jumble, loud noise, loudness, machine language, maffick, make a noise, make a racket, make a sound, make an uproar, meaninglessness, mere noise, message, multiple image, multiple messages, noise and shouting, nonsensicality, nullity, numeric data, octal system, oscillograph data, output data, output quantity, pandemonium, phatic communion, phone, picture, picture noise, picture shifts, play, polar data, punch-card data, purposelessness, rain, raise Cain, raise a clamor, raise hell, raise the devil, raise the roof, random data, rattle, reception, rectangular data, redundancy, reference quantity, resound, rhubarb, roar, rolling, row, ruckus, ruction, ruly English, rumble, rumbling, rumor, rumpus, scanning pattern, scintillation, scramble, secret language, senselessness, shading, shindy, shivaree, signal, signals, single messages, slang, snow, snowstorm, sonance, sound intensity level, sound propagation, sound wave, speak, speech sound, spread, static, thunder, thunderclap, thundering, tintamarre, turmoil, ultrasound, unmeaningness, unorganized data, unsignificancy, visible-speech data, whoop it up
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Nogales
Noggen
Noggin
Nogging
Noght
nogoodnik
Noguchi
nohow
NOI
Noiance
Noie
Noier
Noil
Noils
Noint
Noious
-- Noise --
noise conditions
noise level
noise pollution
noise shaping
Noiseful
Noiseless
noiselessly
noiselessness
noisemaker
Noisette
Noisily
Noisiness
Noisome
noisomeness
Noisy
NOKOS
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