noun · 6 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
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/həˌluːsɪˈneɪʃən/
Southern-England:Recorded audio is listed in the source snapshot.
rhymes with -eɪʃən
CMU ARPABET:HH AH0 L UW2 S AH0 N EY1 SH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
The act of hallucinating; a wandering of the mind; an error, mistake or blunder.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A confident but incorrect response given by an artificial intelligence; a confabulation.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: artificial intelligence
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
an object perceived during a hallucinatory episode
Definition source: Princeton WordNet 3.0
Examples
he refused to believe that the angel was a hallucination
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: object
5
noun
Meaning 5
a mistaken or unfounded opinion or idea
Definition source: Princeton WordNet 3.0
Examples
he has delusions of competence
his dreams of vast wealth are a hallucination
Meaning relationships
Synonyms: delusion
Antonyms: none provided
Broader terms: misconception
Narrower terms: disorientation, freak out
6
noun
Meaning 6
illusory perception; a common symptom of severe mental disorder
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Derives from the verb hallucinate, from Latin hallucinatus. Compare French hallucination. The first known usage in the English language is from Sir Thomas Browne.
Across languages
Translations
127 source translations are retained for this English entry.
Afrikaans:
hallusinasie
— sensory perception of something that does not exist
Arabic:
هَلْوَسَة
(halwasa)
— sensory perception of something that does not exist
Arabic:
وَهْم
(wahm)
— sensory perception of something that does not exist
Arabic:
اِنْخِدَاع
(inḵidāʕ)
— sensory perception of something that does not exist
Armenian:
հալյուցինացիա
(halyucʻinacʻia)
— sensory perception of something that does not exist
Armenian:
զգայախաբություն
(zgayaxabutʻyun)
— sensory perception of something that does not exist
Armenian:
զգայապատրանք
(zgayapatrankʻ)
— sensory perception of something that does not exist
Asturian:
allucinación
— sensory perception of something that does not exist
Azerbaijani:
hallüsinasiya
— sensory perception of something that does not exist
Azerbaijani:
qarabasma
— sensory perception of something that does not exist
Azerbaijani:
gözəgörünmə
— sensory perception of something that does not exist
Basque:
haluzinazio
— sensory perception of something that does not exist
Basque:
eldarnio
— sensory perception of something that does not exist
Belarusian:
галюцына́цыя
(haljucynácyja)
— sensory perception of something that does not exist
Bulgarian:
халюцина́ция
(haljucinácija)
— sensory perception of something that does not exist
Catalan:
al·lucinació
— sensory perception of something that does not exist
Chinese Mandarin:
幻覺 /幻觉
(huànjué)
— sensory perception of something that does not exist
Chinese Mandarin:
幻想
(huànxiǎng)
— sensory perception of something that does not exist
Czech:
halucinace
— sensory perception of something that does not exist
Czech:
přelud
— sensory perception of something that does not exist
Danish:
hallucination
— sensory perception of something that does not exist
Dutch:
waanbeeld
— sensory perception of something that does not exist
Dutch:
hallucinatie
— sensory perception of something that does not exist
Esperanto:
halucino
— sensory perception of something that does not exist
Esperanto:
vizio
— sensory perception of something that does not exist
Estonian:
hallutsinatsioon
— sensory perception of something that does not exist
Finnish:
aistiharha
— sensory perception of something that does not exist
Finnish:
harha-aistimus
— sensory perception of something that does not exist
Finnish:
hallusinaatio
— sensory perception of something that does not exist
Finnish:
harhanäky
— sensory perception of something that does not exist
Finnish:
näköharha
— sensory perception of something that does not exist
French:
hallucination
— sensory perception of something that does not exist
French:
illusion
— sensory perception of something that does not exist
Galician:
alucinación
— sensory perception of something that does not exist
Georgian:
ჰალუცინაცია
(halucinacia)
— sensory perception of something that does not exist
Georgian:
ილუზია
(iluzia)
— sensory perception of something that does not exist
German:
Halluzination
— sensory perception of something that does not exist
German:
Wahnvorstellung
— sensory perception of something that does not exist
German:
Sinnestäuschung
— sensory perception of something that does not exist
German:
Illusion
— sensory perception of something that does not exist
Greek:
παραίσθηση
(paraísthisi)
— sensory perception of something that does not exist
Hebrew:
הזיה
— sensory perception of something that does not exist
Hindi:
विभ्रांति
(vibhrānti)
— sensory perception of something that does not exist
Hindi:
विभ्रम
(vibhram)
— sensory perception of something that does not exist
Hindi:
मतिभ्रम
(matibhram)
— sensory perception of something that does not exist
Hindi:
मतिभ्रांति
(matibhrānti)
— sensory perception of something that does not exist
Hindi:
भ्रम
(bhram)
— sensory perception of something that does not exist
Hindi:
भ्रांति
(bhrānti)
— sensory perception of something that does not exist
Hindi:
वहम
(vaham)
— sensory perception of something that does not exist
Hindi:
इन्ख़िदा
(inxidā)
— sensory perception of something that does not exist
Hindi:
इंख़िदा
(iṅxidā)
— sensory perception of something that does not exist
Hindi:
हलवसा
(halavsā)
— sensory perception of something that does not exist
Hungarian:
hallucináció
— sensory perception of something that does not exist
Hungarian:
érzékcsalódás
— sensory perception of something that does not exist
Icelandic:
skynvilla
— sensory perception of something that does not exist
Indonesian:
halusinasi
— sensory perception of something that does not exist
Irish:
bréagchéadfa
— sensory perception of something that does not exist
Irish:
éiclips
— sensory perception of something that does not exist
Irish:
mearú súl
— sensory perception of something that does not exist
Irish:
meascán mearaí
— sensory perception of something that does not exist
Irish:
speabhraíd
— sensory perception of something that does not exist
Italian:
allucinazione
— sensory perception of something that does not exist
Japanese:
幻覚
(genkaku)
— sensory perception of something that does not exist
Japanese:
幻想
(gensō)
— sensory perception of something that does not exist
Kazakh:
галлюцинация
(gallüsinasiä)
— sensory perception of something that does not exist
Kazakh:
елестеушілік
(elesteuşılık)
— sensory perception of something that does not exist
Korean:
환각
(hwan'gak)
— sensory perception of something that does not exist
Latvian:
halucinācija
— sensory perception of something that does not exist
Lithuanian:
haliucinacija
— sensory perception of something that does not exist
Luxembourgish:
Halluzinatioun
— sensory perception of something that does not exist
Macedonian:
халуцина́ција
(halucinácija)
— sensory perception of something that does not exist
Māori:
pohewatanga
— sensory perception of something that does not exist
Marathi:
विभ्रांति
(vibhrānti)
— sensory perception of something that does not exist
Marathi:
विभ्रम
(vibhram)
— sensory perception of something that does not exist
Marathi:
मतिभ्रम
(matibhram)
— sensory perception of something that does not exist
Marathi:
मतिभ्रांति
(matibhrānti)
— sensory perception of something that does not exist
Marathi:
भ्रम
(bhram)
— sensory perception of something that does not exist
Marathi:
भ्रांति
(bhrānti)
— sensory perception of something that does not exist
Nepali:
विभ्रांति
(vibhrānti)
— sensory perception of something that does not exist
Nepali:
विभ्रम
(vibhram)
— sensory perception of something that does not exist
Nepali:
मतिभ्रम
(matibhram)
— sensory perception of something that does not exist
Nepali:
मतिभ्रांति
(matibhrānti)
— sensory perception of something that does not exist
Nepali:
भ्रम
(bhram)
— sensory perception of something that does not exist
Nepali:
भ्रांति
(bhrānti)
— sensory perception of something that does not exist
Norwegian Bokmål:
hallusinasjon
— sensory perception of something that does not exist
Norwegian Nynorsk:
hallusinasjon
— sensory perception of something that does not exist
Plautdietsch:
Feebadroom
— sensory perception of something that does not exist
Polish:
halucynacja
— sensory perception of something that does not exist
Portuguese:
alucinação
— sensory perception of something that does not exist
Russian:
галлюцина́ция
(galljucinácija)
— sensory perception of something that does not exist
Russian:
иллю́зия
(illjúzija)
— sensory perception of something that does not exist
Russian:
наважде́ние
(navaždénije)
— sensory perception of something that does not exist
Russian:
глюк
(gljuk)
— sensory perception of something that does not exist
Sanskrit:
विभ्रान्ति
(vibhrānti)
— sensory perception of something that does not exist
Sanskrit:
विभ्रम
(vibhrama)
— sensory perception of something that does not exist
Sanskrit:
मतिभ्रम
(matibhrama)
— sensory perception of something that does not exist
Sanskrit:
मतिभ्रान्ति
(matibhrānti)
— sensory perception of something that does not exist
Sanskrit:
भ्रम
(bhrama)
— sensory perception of something that does not exist
Sanskrit:
भ्रान्ति
(bhrānti)
— sensory perception of something that does not exist
Slovak:
halucinácia
— sensory perception of something that does not exist
Slovene:
halucinacija
— sensory perception of something that does not exist
Sotho:
pono tse fosahetseng
— sensory perception of something that does not exist
Spanish:
alucinación
— sensory perception of something that does not exist
Spanish:
ilusión
— sensory perception of something that does not exist
Swedish:
hallucination
— sensory perception of something that does not exist
Telugu:
భ్రాంతి
(bhrānti)
— sensory perception of something that does not exist
Telugu:
భ్రమ
(bhrama)
— sensory perception of something that does not exist
Thai:
ภาพลวงตา
(paa pluang dtaa)
— sensory perception of something that does not exist
Turkish:
sanrı
— sensory perception of something that does not exist
Turkish:
halüsinasyon
— sensory perception of something that does not exist
Ukrainian:
галюцина́ція
(haljucynácija)
— sensory perception of something that does not exist
Welsh:
rhithweledigaeth
— sensory perception of something that does not exist
Afrikaans:
hallusineer
— act of hallucinating
Bulgarian:
халюциниране
(haljucinirane)
— act of hallucinating
Catalan:
al·lucinació
— act of hallucinating
Finnish:
harha-aistimus
— act of hallucinating
Finnish:
hallusinointi
— act of hallucinating
Galician:
alucinación
— act of hallucinating
German:
Halluzinieren
— act of hallucinating
Greek:
παραίσθηση
(paraísthisi)
— act of hallucinating
Irish:
siabhránacht
— act of hallucinating
Macedonian:
халуцини́рање
(haluciníranje)
— act of hallucinating
Māori:
pohewatanga
— act of hallucinating
Portuguese:
alucinação
— act of hallucinating
Sotho:
phofa
— act of hallucinating
Spanish:
alucinación
— act of hallucinating
Turkish:
halüsinasyon görme
— act of hallucinating