# hallucination

> English word · Noun · IPA /həˌluːsɪˈneɪʃən/ · frequency rank #33,265

## Definitions
1. A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens.
2. The act of hallucinating; a wandering of the mind; an error, mistake or blunder.
3. A confident but incorrect response given by an artificial intelligence; a confabulation.

## Etymology
Derives from the verb hallucinate, from Latin hallucinatus. Compare French hallucination. The first known usage in the English language is from Sir Thomas Browne.

## Common misspellings (18)
`ahllucination`, `hallcuination`, `halluccination`, `halluciantion`, `hallucinaiton`, `hallucinasion`, `hallucinatino`, `hallucinationn`, `hallucinatoin`, `hallucinattion`, `hallucinnation`, `hallucintaion`, `hallucniation`, `halluicnation`, `halucination`, `halulcination`, `hhallucination`, `hlalucination`

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