A cacophony is a harsh, jarring mixture of sounds that clash rather than blend together. Imagine a school orchestra where everyone plays different songs at the same time, or a parking lot where car horns, screeching brakes, and rumbling engines create an unpleasant wall of noise. That's cacophony.

The word comes from Greek roots meaning “bad sound,” and it captures that particular quality of noise that feels chaotic and grating. A bustling cafeteria might be loud, but it becomes a cacophony when plates crash, chairs scrape, dozens of conversations overlap, and someone drops a tray all at once.

Writers use cacophony deliberately too. A poet describing a battle scene or a busy city street might choose words with harsh consonants that clash when read aloud, creating a cacophonous effect that makes readers feel the chaos. Try saying “crashing, clanking, clashing” quickly, and you'll hear how the sounds themselves seem to bump into each other.

The opposite is euphony, which means pleasant, harmonious sound. While euphony soothes the ear like a gentle melody, cacophony hits it like a dozen alarm clocks going off at once.