delusion
/dɪˈl(j)uːʒ(ə)n/noun
delusion is spelled D-E-L-U-S-I-O-N: 8 letters and 3 syllables. It appears 2.3 times per million words in written English, the 17,813th most frequent word form (wordfreq, 2021 data). As a noun, delusion means “An adamant belief in a falsehood despite incontestable evidence” (English Wiktionary, September 2026). The plural of delusion is delusions.
How many letters and syllables are in delusion?
| Letters | 8: D-E-L-U-S-I-O-N |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | 2.3 times per million words; the 17,813th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with | |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is delusion?
Delusion appears 2.3 times per million words in written English, the 17,813th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce delusion?
- UK /dɪˈl(j)uːʒ(ə)n/
- UK /dɪˈl(j)uːzjən/
Delusion has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-I_learned_some_phrases-delusion.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with delusion?
One word on PlainSpell end in the same sounds as delusion from its last stressed vowel (/uʒn/, British pronunciation):
Spelled with the same letters in another order: unsoiled.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of delusion
- delusions plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does delusion mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
An adamant belief in a falsehood despite incontestable evidence.
- 2
The state of being deluded or misled, or process of deluding somebody.
It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.
- 3
That which is falsely or delusively believed or propagated; false belief; error in belief.
- 4
A strong belief contrary to evidence.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Delusion in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | illusion, délire, idée délirante |
| German | Täuschung, Irreführung , Wahn , Wahnvorstellung |
| Portuguese | ilusão, delusão , delírio |
| Spanish | engaño, ilusión , delirio , idea delirante, delusión |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does delusion come from?
From Latin dēlūsiō.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).