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Illusion vs Delusion
Difference, Examples & Quiz

What's the difference? Which one is correct?


Definition: An illusion is a false perception or belief about something that is not real or true.

Usage: Illusions can be created through visual tricks, magic tricks, or even through the power of suggestion.

Example sentences:
  • 1. The magician created an illusion of making a rabbit disappear.
  • 2. The mirage in the desert is an illusion, as it appears to be water but is actually just hot air.
  • 3. She had the illusion of being in control, but in reality, she was just fooling herself.

Definition: A delusion is a persistent false belief that is held despite evidence to the contrary.

Usage: Delusions are often associated with mental disorders such as schizophrenia or bipolar disorder.

Example sentences:
  • 1. He was under the delusion that he was a famous celebrity, even though he had no evidence to support it.
  • 2. The patient's delusion of being monitored by the government led to paranoid behavior.
  • 3. Her delusion that everyone was out to get her caused her to isolate herself from friends and family.

Illusion and delusion are two words that are often confused due to their similar spelling and pronunciation. However, they have different meanings and usage.

Quizzes about "Illusion" vs "Delusion"

Illusion vs Delusion: 5 Quizzes

1. What is an illusion?

2. What is a delusion?

3. Which of the following is an example of an illusion?

4. What causes delusions?

5. How can illusions be created?


  • What is illusion?

    Illusion is a perception that does not correspond to reality.

  • What causes illusion?

    Illusion can be caused by various factors, such as sensory distortions or cognitive biases.

  • Can illusions be explained scientifically?

    Yes, illusions can be studied and explained through scientific research in fields like psychology and neuroscience.

  • What is delusion?

    Delusion is a fixed false belief that is resistant to reason or evidence.

  • How are delusions different from illusions?

    While illusions are perceptual distortions, delusions are persistent false beliefs that are not based on reality.