The plural form of cacophony; multiple instances or examples of harsh, discordant, or unpleasant sounds or sound mixtures.
From 'cacophony' + the regular English plural suffix '-ies'; 'cacophony' itself comes from Greek 'kakos' (bad) + 'phone' (sound).
The plural form is interesting because 'cacophony' usually refers to a whole system of sounds—but 'cacophonies' lets us talk about different bad-sound situations separately, like how a classroom and a factory have different cacophonies.
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