illusion

/ɪˈl(j)uːʒ(ə)n/noun

Something that gives a false impression of being real or true.

Example sentences

“The mirrored wall creates an illusion of a much larger room.”
“He clung to the illusion that everyone admired him.”

Not the same as 'allusion', an indirect reference, or 'delusion', a false belief a person clings to.

Featured as word of the day on March 3, 2026.

Synonyms for illusion

false impression
deception

Antonyms

reality

Often confused with illusion

illusion vs allusion
illusion vs delusion

Related words

mirageA trick of light over hot ground that makes you think you see something in the distance, such as water, that is not really there.illustrateTo make something clearer, often by giving examples or adding pictures.illuminateTo shine light on something so that it can be seen clearly.illustriousFamous and greatly respected, especially because of outstanding achievements.illnessThe condition of being unwell; a disease or a period of poor health.imaginativeFull of creativity; good at coming up with new and original ideas.