Allusion vs Illusion

Quick Tip: Remember: Allusion is a reference (think "allude"). Illusion is a false perception (think "optical illusion").

Allusion

noun

an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference

Examples:
  • The poem contains an allusion to Shakespeare.
  • His speech included an allusion to the company's history.
  • The book is full of literary allusions.

Illusion

noun

a thing that is or is likely to be wrongly perceived or interpreted by the senses

Examples:
  • The magician created an optical illusion.
  • It was an illusion that the building was leaning.
  • Don't be under the illusion that this will be easy.
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