Definition of illusionnext

Synonym Chooser

How does the noun illusion contrast with its synonyms?

Some common synonyms of illusion are delusion, hallucination, and mirage. While all these words mean "something that is believed to be true or real but that is actually false or unreal," illusion implies a false ascribing of reality based on what one sees or imagines.

an illusion of safety

When is delusion a more appropriate choice than illusion?

While the synonyms delusion and illusion are close in meaning, delusion implies an inability to distinguish between what is real and what only seems to be real, often as the result of a disordered state of mind.

delusions of persecution

When could hallucination be used to replace illusion?

In some situations, the words hallucination and illusion are roughly equivalent. However, hallucination implies impressions that are the product of disordered senses, as because of mental illness or drugs.

suffered from terrifying hallucinations

When might mirage be a better fit than illusion?

The words mirage and illusion are synonyms, but do differ in nuance. Specifically, mirage in its extended sense applies to an illusory vision, dream, hope, or aim.

claimed a balanced budget is a mirage

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of illusion Artists and couturiers are fond of the whimsy of trompe l’oeil, the trick of the eye, the illusion of reality. Patt Morrison, Los Angeles Times, 20 June 2026 To achieve the look, start with a sheer coat of polish that's translucent enough to let the natural beige of your nail tip shine through, subtly creating the illusion of a soft French tip. Amanda Le, InStyle, 19 June 2026 No one should be under any illusion that an American withdrawal from the Middle East will make the region more peaceful or stable. Thomas Wright, The Atlantic, 19 June 2026 Use Mirrors to Amplify Natural Light When positioned thoughtfully, mirrors can create the illusion of additional space. Natasha Bazika, Martha Stewart, 19 June 2026 See All Example Sentences for illusion
Recent Examples of Synonyms for illusion
Noun
  • With so much else to rebuild, a baseball season in 2026 seemed like more than a dream.
    Bo Evans, CBS News, 29 June 2026
  • Their dream houses have ocean views, swimming pools and four or more bedrooms, which may be hard to find.
    Roger Vincent, Los Angeles Times, 29 June 2026
Noun
  • By chance, Rhaena arrives at the Gullet on dragonback just in time to make the same hubristic mistake as her sister and her cousin, all suffering from the delusion that the war needs them.
    Amanda Whiting, Vulture, 22 June 2026
  • Schizoaffective disorder is a mental health condition that is marked by a mix of schizophrenia symptoms, such as hallucinations and delusions, and mood disorder symptoms, such as depression, mania and a milder form of mania called hypomania, according to the Mayo Clinic.
    Angela Andaloro, PEOPLE, 22 June 2026
Noun
  • Possibly the biggest Korean release of the summer, this dark fantasy historical thriller stars Nam Joo-hyuk as Gu-cheon, a man who can traverse the world of ghosts, alongside Roh Yoon-seo as Saeng-gang, a court lady carrying a dangerous secret.
    Hannah Abraham, Forbes.com, 30 June 2026
  • Sometimes that player fantasy can be expressed through a simple toy that just feels good, briefly.
    Jennifer Maas, Variety, 30 June 2026
Noun
  • The piece’s name is also a nod to a Greek myth, in which the 50 daughters of King Danaos—the Danaïdes—were ordered to kill their husbands on their wedding night.
    Nicole Hoey, Robb Report, 25 June 2026
  • Reinventing the Batman myth for a new generation of fans, Absolute Batman reimagines the Dark Knight as a working-class hero up against impossible odds on a mission to prove that even in an era of wealth, power and corruption, one good person can change the world.
    Melanie Goodfellow, Deadline, 25 June 2026
Noun
  • Your 10th House of Career and Status receives Jupiter, urging long-range vision and public progress that grows through structure.
    Tarot.com, Chicago Tribune, 30 June 2026
  • Roman will pair a large field of view with crisp infrared vision to survey deep, vast swaths of sky.
    Richard Tribou, The Orlando Sentinel, 29 June 2026
Noun
  • With Yerry De los Santos also fumbling a bunt in the eighth, the Yanks tallied a season-high four errors on the night.
    Gary Phillips, New York Daily News, 26 June 2026
  • Michael Conforto, Alex Bregman and Ian Happ had RBI hits in the sixth, when the Cubs’ runs were unearned thanks to a pair of errors.
    Jerry Beach, Chicago Tribune, 26 June 2026
Noun
  • And amidst the momentum of reverie, there’s the line ‘Blink at the light and hope to survive,’ because daydreams in a fascist state can be scary too.
    Nina Corcoran, Pitchfork, 23 June 2026
  • One-touch passing, feinting and ripping hard shots into a tattered net, each is super-charged by vivid daydreams of glory on the international stage.
    Jason Motlagh, Rolling Stone, 22 June 2026
Noun
  • The passion for sports is a matter of its unrealities—its past is more myth than history.
    Austin Elias-de Jesus, New Yorker, 3 June 2026
  • The unreality of Lexi’s play gave us a fun-house mirror of the show cast back onto itself.
    Fran Hoepfner, Vulture, 2 June 2026

Browse Nearby Words

Cite this Entry

“Illusion.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/illusion. Accessed 3 Jul. 2026.

More from Merriam-Webster on illusion

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster