noun · 7 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.
UK:/dɪˈl(j)uːʒ(ə)n/
UK:/dɪˈl(j)uːzjən/
rhymes with -uːʒən
UK:Recorded audio is listed in the source snapshot.
CMU ARPABET:D IH0 L UW1 ZH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
An adamant belief in a falsehood despite incontestable evidence.
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 state of being deluded or misled, or process of deluding somebody.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Examples
It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
That which is falsely or delusively believed or propagated; false belief; error in belief.
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
4
noun
Meaning 4
A strong belief contrary to evidence.
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
5
noun
Meaning 5
the act of deluding; deception by creating illusory ideas
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.