verb · 3 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
/həˈl(j)uːsɪneɪt/
Southern-England:Recorded audio is listed in the source snapshot.
CMU ARPABET:HH AH0 L UW1 S AH0 N EY0 T
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
verb
Meaning 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.
Definition source: English Wiktionary via Wiktextract
Usage: ambitransitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: imagine, see things
Antonyms: none provided
2
verb
Meaning 2
To produce information that is not supported by the model's training data.
Definition source: English Wiktionary via Wiktextract
Qualifier: artificial intelligence
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
verb
Meaning 3
perceive what is not there; have illusions
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: perceive, comprehend
History
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).
Across languages
Translations
26 source translations are retained for this English entry.
Afrikaans:
hallusineer
— seem to perceive what is not really present
Arabic:
هَلْوَسَ
(halwasa)
— seem to perceive what is not really present
Bulgarian:
халюцинирам
(haljuciniram)
— seem to perceive what is not really present
Catalan:
al·lucinar
— seem to perceive what is not really present
Chinese Mandarin:
幻想
(huànxiǎng)
— seem to perceive what is not really present
Choctaw:
holhpukna
— seem to perceive what is not really present
Esperanto:
halucini
— seem to perceive what is not really present
Esperanto:
haluciniĝi
— seem to perceive what is not really present
Finnish:
hallusinoida
— seem to perceive what is not really present
Finnish:
nähdä harhoja
— seem to perceive what is not really present
French:
halluciner
— seem to perceive what is not really present
Georgian:
მოლანდება
(molandeba)
— seem to perceive what is not really present
German:
halluzinieren
— seem to perceive what is not really present
Hungarian:
hallucinál
— seem to perceive what is not really present
Italian:
allucinare
— seem to perceive what is not really present
Latin:
hallūcinor
— seem to perceive what is not really present
Māori:
pohewa
— seem to perceive what is not really present
Portuguese:
alucinar
— seem to perceive what is not really present
Romanian:
halucina
— seem to perceive what is not really present
Russian:
галлюцинировать
(galljúcinirovat')
— seem to perceive what is not really present
Sotho:
phofa
— seem to perceive what is not really present
Spanish:
alucinar
— seem to perceive what is not really present
Swedish:
hallucinera
— seem to perceive what is not really present
Telugu:
భ్రమించు
(bhramiñcu)
— seem to perceive what is not really present
Telugu:
భ్రాంతి చెందు
(bhrānti cendu)
— seem to perceive what is not really present
Turkish:
halüsinasyon görmek
— seem to perceive what is not really present
