hallucination

/həˌluːsɪˈneɪʃən/

//həˌluːsɪˈneɪʃən// noun

By · According to Wiktionary data (CC BY-SA) ·

"hallucination" is a 13-letter English headword indexed on PlainSpell.

The verdict

“hallucination” has 18 generated spelling variants in the English index at frequency #33,265. The variants make it a useful spelling check.

#33,265
frequency rank, English
2,646
“H” headwords
18
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens.

Corpus desk

Index EN-hallucination · hallucination · English

hallucination · rank #33,265 · 18 variants · 0 confusables

  • FREQ-MID #33,265
  • LEN-MEGA 13 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 18 variants
  • BOOK-MID 2,646
  • PHOTO-FINISH Hales

Nearest frequency peer: Hales (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “hallucination”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “hallucination” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for hallucination
PropertyValue
Headwordhallucination
LanguageEnglish
Part of speechNoun
IPA/həˌluːsɪˈneɪʃən/
Letters13
Frequency rank#33,265
Misspellings tracked18
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “hallucination”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).hallucinationlands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “Hales” (#33,264), “Hamill” (#33,266), “hamza” (#33,267). Among 2,646 “H” headwords, “hallucination” is #33,265. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 18 spelling variants around hallucination (IPA /həˌluːsɪˈneɪʃən/), anoun. Corpus frequency is #33,265 among 2,646 “H” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 18 likely wrong-spelling variants for hallucination, with forms such as "ahllucination", "hallcuination", and "halluccination". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It is not paired with a close-neighbour confusable in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: Derives from the verb hallucinate, from Latin hallucinatus. Compare French hallucination. The first known usage in the English language is from Sir Thomas Browne. The correct English form is hallucination, spelled H-A-L-L-U-C-I-N-A-T-I-O-N.

Definition

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

Recorded use

Wiktionary examples

These source excerpts show how hallucination appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Hallucinations are always evidence of cerebral derangement and are common phenomena of insanity.
  2. The authorities said that the spinach had caused “possible food-related toxic reactions” with those affected experiencing symptoms including delirium, hallucinations, blurred vision, rapid heartbeat and fever.

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.

This word in other languages

alucinación(Español)hallucination(Français)Halluzination(Deutsch)alucinação(Português)

Common misspellings

Also misspelled as:

  • ahllucination
  • hallcuination
  • halluccination
  • halluciantion
  • hallucinaiton
  • hallucinasion
  • hallucinatino
  • hallucinationn
  • hallucinatoin
  • hallucinattion
  • hallucinnation
  • hallucintaion
  • hallucniation
  • halluicnation
  • halucination
  • halulcination
  • hhallucination
  • hlalucination

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of hallucination - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ahllucination2hallcuination2halluccination1halluciantion2hallucinaiton2hallucinasion1hallucinatino2hallucinationn1
Edit distance from "hallucination"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "hallucination"?
"hallucination" is spelled H-A-L-L-U-C-I-N-A-T-I-O-N. The IPA pronunciation is /həˌluːsɪˈneɪʃən/.
What does "hallucination" mean?
As a noun, "hallucination" means: A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens.
What are common misspellings of "hallucination"?
Common misspellings include "ahllucination", "hallcuination", "halluccination", "halluciantion", "hallucinaiton". The correct spelling is "hallucination".
How do you pronounce "hallucination"?
The IPA (International Phonetic Alphabet) transcription for "hallucination" is /həˌluːsɪˈneɪʃən/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "hallucination"?
Derives from the verb hallucinate, from Latin hallucinatus. Compare French hallucination. The first known usage in the English language is from Sir Thomas Browne. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "hallucination", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

contemplative#33,188perfectionist#33,362baccalaureate#33,138argumentative#33,128

Similar misspelling depth

Headwords with a similar count of attested misspellings (18 here; floor ≥5).

hydrophobic18 variantsinflationary18 variantsepistemology18 variantsundetermined18 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list