Sound-alike words

Allusion vs. Illusion

An allusion is an indirect reference to something, such as a book, a song or an event. An illusion is something that looks or seems real but is not, or a false belief. Magic tricks create illusions.

Word	Part of speech	Meaning
allusion	noun	a brief, indirect reference to a person, place, story or event
illusion	noun	something that tricks the eyes or mind into seeing what is not really there
illusion	noun	a false idea or belief about something

Allusion

noun: a brief, indirect reference to a person, place, story or event

The title of the novel is an allusion to an old fairy tale.
The song's lyrics contain several allusions to the singer's hometown.

Illusion

noun: something that tricks the eyes or mind into seeing what is not really there

Mirrors on the wall give the illusion of a bigger room.
The heat on the road created the illusion of water ahead.

noun: a false idea or belief about something

Ana had no illusions about how hard the new job would be.
Many people are under the illusion that cooking at home takes hours.

How to remember the difference

An illusionist, a stage magician, creates illusions. An allusion goes with allude: it alludes, or hints, at something.

Good to know

Delusion is related to illusion but stronger: it is a false belief a person holds on to even when shown clear evidence against it.

Spot the mistake

The poem makes an ~~illusion~~ allusion to a famous old legend.
Correct: The poem makes an allusion to a famous old legend.
The striped wallpaper creates the ~~allusion~~ illusion of a taller ceiling.
Correct: The striped wallpaper creates the illusion of a taller ceiling.

Check yourself

Pick the word that fits each sentence.

1. The dark paint gives the that the hallway is narrower.

2. Her comment about the tortoise and the hare was an to the old fable.