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 Other segments included card magic, floating illusions, and comedic skits, in which humanoids displayed improved timing, expressive behavior, and coordinated role interactions. Jijo Malayil, Interesting Engineering, 16 Feb. 2026 Staying emotionally up to date Waking up next to the same person every day can create the illusion of deep familiarity. Mark Travers, CNBC, 15 Feb. 2026 But that certainty is often an illusion, Olga Khazan writes. Rafaela Jinich, The Atlantic, 14 Feb. 2026 On the bottom, the mother of two wore fluid, wide-leg trousers that billowed with each step, creating the illusion of a midi skirt. Kelsey Stewart, Footwear News, 13 Feb. 2026 See All Example Sentences for illusion
Recent Examples of Synonyms for illusion
Noun
  • Being cheated on or in an abusive relationship can leave a deep imprint on one’s psyche and lead to an ex appearing in dreams.
    Lisa Wong Macabasco, Vogue, 15 Feb. 2026
  • What initially appears to be a Marxist dream state soon reveals itself as a system maintained through algorithmic control and absolute surveillance.
    Scott Roxborough, HollywoodReporter, 15 Feb. 2026
Noun
  • Mitchell, who had religious delusions, had previously worked as a roofer on the family’s house.
    David Faris, TheWeek, 16 Feb. 2026
  • Troublingly, there are unfolding layers of delusion too.
    James Folta, Literary Hub, 5 Feb. 2026
Noun
  • And now masked Proud Boys can cosplay their paramilitary fantasies, shatter our Constitutional rights, and disappear humans while the federal government flippantly threatens its citizens with the Insurrection Act and Aliens Enemies Act.
    Literary Hub, Literary Hub, 19 Feb. 2026
  • While the invading Martians and their tall, terrifying, laser-toting tripods are undeniably fantasy, the fact that they were undone by Earth’s disease-causing microbes is not.
    Big Think, Big Think, 19 Feb. 2026
Noun
  • Like any good cocktail, the margarita comes with a twist of myth.
    Ana Gutierrez, Austin American Statesman, 19 Feb. 2026
  • Yaga is based on the play by Kat Sandler, who serves as the show’s writer and showrunner, and is a contemporary reimagining of the myth of Baba Yaga set in a coastal town.
    Nicole Fell, HollywoodReporter, 18 Feb. 2026
Noun
  • But his vision for the board to be a mediator of worldwide conflicts has led to skepticism from major allies.
    Arkansas Online, Arkansas Online, 19 Feb. 2026
  • His vision was rooted in hope, healing and the belief that young adult cancer fighters deserve moments of freedom, strength and joy, said Kelly Schwartz, the center’s operations manager.
    Laylan Connelly, Oc Register, 18 Feb. 2026
Noun
  • The man is facing a charge of grossly negligent homicide, with state prosecutors in Innsbruck accusing him of making multiple errors, including seeking help too late and not carrying suitable equipment.
    Sophie Tanno, CNN Money, 19 Feb. 2026
  • The poll found that Cornyn, Hunt and Paxton all have a lead over Crockett and Talarico in a hypothetical November matchup, but that their leads are within the poll’s margin of error.
    Eleanor Dearman, Fort Worth Star-Telegram, 19 Feb. 2026
Noun
  • Shortly after, the book began to take shape, with new elements often arriving in vivid daydreams and eerie nightmares.
    Charlie Vargas, Oc Register, 30 Jan. 2026
  • And like the iconic Orient-Express (whose original route has been revived by Belmond's Venice Simplon-Orient-Express), the Champagne flutes, suited servers, and glossy design of this locomotive hold a seductive potential for daydreams and drama.
    Arati Menon, Condé Nast Traveler, 28 Jan. 2026
Noun
  • Contributing to this air of unreality is Kari Kankaanpää’s production design, in which everything feels a little heightened and stylized.
    Catherine Bray, Variety, 14 Feb. 2026
  • To hear about a mass shooting in another city is to feel one is at the periphery of ongoing history; but perversely, to live near the site of a shooting is to feel nothing has changed except that unreality has come closer.
    Karan Mahajan, New Yorker, 15 Dec. 2025

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Cite this Entry

“Illusion.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/illusion. Accessed 20 Feb. 2026.

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