# hallucinate

> English word · Verb · IPA /həˈl(j)uːsɪneɪt/ · frequency rank #62,188

## Definitions
1. To seem to perceive things (with one or more of one's senses) which are not really present; to have visions; to experience a hallucination.
2. To produce information that is not supported by the model's training data.

## Etymology
First attested in 1604; borrowed from Latin hallūcinātus, alternative form of alūcinātus, perfect active participle of alucinor (“to dream”); see -ate (verb-forming suffix).

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