This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Jarring, discordant sound; dissonance: heard a cacophony of horns during the traffic jam.

n. The use of harsh or discordant sounds in literary composition, as for poetic effect.

n. A mix of discordant sounds; dissonance.

n. An uncouth or disagreable sound of words, owing to the concurrence of harsh letters or syllables.

n. A combination of discordant sounds.

n. An unhealthy state of the voice.

n. A combination of discordant sounds; specifically, in rhetoric, a faulty choice or arrangement of words, producing inharmonious or discordant combinations of sounds, or too great frequency of such combinations as are for any reason unpleasant to the ear; also, the uncouth or disagreeable sound so produced: the opposite of euphony.

n. In pathology, a depraved voice; an altered state of the voice.

n. a loud harsh or strident noise

n. loud confusing disagreeable sounds

"On one side was Andrew Keen, author of The Cult of the Amateur, railing against what he called the cacophony of Web 2.0 and the calamitous effects of user-generated content on our culture."

euphony    harmony   

noise    dissonance   

cacophonous    harmony    dissonance   

cacophonic   

clamor    din    uproar    blare    screech    crescendo    peal    hubbub    tumult    bellow