# illusion

> English word · Noun · IPA /ɪˈl(j)uːʒ(ə)n/ · frequency rank #7,803

## Definitions
1. Anything that seems to be something that it is not.
2. A misapprehension; a belief in something that is in fact not true.
3. A magician’s trick.
4. The state of being deceived or misled.

## Etymology
From Old French illusion, from Latin illūsiō, from illūdere, from in- (“at, upon”) + lūdere (“to play, mock, trick”). Displaced native Old English dwimmer.

## Easily confused with
- **infusion** (https://plainspell.com/en/vs/illusion-vs-infusion)
- **inclusion** (https://plainspell.com/en/vs/illusion-vs-inclusion)

## Common misspellings (10)
`illsuion`, `illuison`, `illusino`, `illusionn`, `illusoin`, `illussion`, `illution`, `ilulsion`, `ilusion`, `lilusion`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/illusion