Choose the correct one-word substitution for: ‘A loud and confused noise’.

Correct — A. Cacophony is a harsh, discordant mixture of sounds, many noises clashing at once.

The definition has two parts, loud and confused. Cacophony carries both: loud, jarring sounds, jumbled so that none stands clear → option (a).

The Greek root says the same: kakos, 'bad', and phōnē, 'sound'.

Why the others are wrong

• (b)
  Soliloquy — Soliloquy is not a noise at all. It is a speech in which a character alone on stage speaks their thoughts aloud, like Hamlet's 'To be, or not to be'.
• (c)
  Racket — Racket is the nearest miss: a loud, unpleasant noise, a din. It names the loudness plainly, while cacophony is the exact word for a clash of many jarring sounds.
• (d)
  Roar — Roar is a single loud, deep, prolonged sound, like a lion's or an engine's. It is loud but not confused, because nothing in it is a mixture.

A one-word substitution is matched against every part of the definition. 'A loud and confused noise' has two: volume and disorder.

Roar has the volume and not the disorder. Soliloquy has neither. Racket and cacophony both describe unwelcome noise, and cacophony is the word built on many sounds clashing.

Its opposite is euphony, a pleasing sound, from Greek eu-, 'well'.

Key facts

• Cacophony means a harsh, discordant mixture of sounds.
• It comes from Greek kakophōnia, from kakos 'bad' and phōnē 'sound'.
• Its opposite is euphony, a pleasing combination of sounds.
• A soliloquy is a speech a character makes alone on stage, speaking their thoughts aloud.

Common traps

• Stopping at Racket because it means a loud noise, without checking which option carries the 'confused' half of the definition
• Choosing Roar because it sounds the loudest, though a roar is one sound, not a jumble

No directly related past PYQ was found.