An erroneous mental representation.

synonym: semblance.

Roget 443: dim sight, dull sight half sight, short sight, near sight, long sight, double sight, astigmatic sight, failing sight; dimsightedness &c.; purblindness, lippitude^†; myopia, presbyopia^†; confusion of vision; astigmatism; color blindness, chromato pseudo blepsis^†, Daltonism; nyctalopia^†; strabismus, strabism^†, squint; blearedness^†, day blindness, hemeralopia^†, nystagmus; xanthocyanopia^†, xanthopsia [Med.]; cast in the eye, swivel eye, goggle-eyes; obliquity of vision.    winking etc. v.; nictitation; blinkard^†, albino.    dizziness, swimming, scotomy^†; cataract; ophthalmia.    [Limitation of vision] blinker; screen etc. (hider) 530.    [Fallacies of vision] deceptio visus [Lat.]; refraction, distortion, illusion, false light, anamorphosis^†, virtual image, spectrum, mirage, looming, phasma^†; phantasm, phantasma^†, phantom; vision; specter, apparition, ghost; ignis fatuus [Lat.] etc. (luminary) 423; specter of the Brocken; magic mirror; magic lantern etc. (show) 448; mirror lens etc. (instrument) 445.    ... show more

Dutch: chimère, drogbeeld, fantasma, hallucinatie, hersenschim, hersenspinsel, illusie, spooksel, waandenkbeeld, waanidee, waanvoorstelling, zinsbegoocheling ... show more

Something many people believe that is false:
— They have the illusion that I am very wealthy.

synonyms: fancy, fantasy, phantasy.

Roget 515: imagination; originality; invention; fancy; inspiration; verve.    warm imagination, heated imagination, excited imagination, sanguine imagination, ardent imagination, fiery imagination, boiling imagination, wild imagination, bold imagination, daring imagination, playful imagination, lively imagination, fertile imagination, fancy.    mind's eye;" such stuff as dreams are made of" [Tempest]. ideality, idealism; romanticism, utopianism, castle-building.    dreaming; phrensy^†, frenzy; ecstasy, extasy^†; calenture etc. (delirium) 503^†; reverie, trance; day dream, golden dream; somnambulism.    conception, Vorstellung [G.], excogitation^†, a fine frenzy;" cloudland^†, dreamland; flight of fancy, fumes of fancy; thick coming fancies" [Macbeth]; creation of the brain, coinage of the brain; imagery.    conceit, maggot, figment, myth, dream, vision, shadow, chimera; phantasm, phantasy; fantasy, fancy; whim, whimsey^†, whimsy; vagary, rhapsody, romance, gest^†, geste^†, extravaganza; air drawn dagger, bugbear, nightmare.    flying Dutchman, great sea serpent, man in the moon, castle in the air, pipe dream, pie-in-the-sky, chateau en Espagne [Fr.]; Utopia, Atlantis^†, happy valley, millennium, fairyland; land of Prester John, kindgom of Micomicon; work of fiction etc. (novel) 594; Arabian nights^†; le pot au lait [Fr.]; dream of Alnashar etc. (hope) 858^†.    illusion etc. (error) 495; phantom etc. (fallacy of vision) 443; Fata Morgana etc. (ignis fatuus) [Lat.] 423; vapor etc. (cloud) 353; stretch of the imagination etc. (exaggeration) 549; mythogenesis^†.    idealist, romanticist, visionary; mopus^†; romancer, dreamer; somnambulist; rhapsodist etc. (fanatic) 504; castle-buildier, fanciful projector.    ... show more

Dutch: zinsbegoocheling, fantasy, illusie, inbeelding, verbeelding
Polish: iluzja, złudzenie

The act of deluding; deception by creating illusory ideas.

synonyms: delusion, head game.

Roget 495: error, fallacy; misconception, misapprehension, misstanding^†, misunderstanding; inexactness etc. adj.; laxity; misconstruction etc. (misinterpretation) 523; miscomputation etc. (misjudgment) 481; non sequitur etc. 477; mis-statement, mis-report; mumpsimus^†.    mistake; miss, fault, blunder, quiproquo, cross purposes, oversight, misprint, erratum, corrigendum, slip, blot, flaw, loose thread; trip, stumble etc. (failure) 732; botchery etc. (want of skill) 699^†; slip of the tongue, slip of the lip, Freudian slip; slip of the pen; lapsus linguae [Lat.], clerical error; bull etc. (absurdity) 497; haplography^†.    illusion, delusion; snare; false impression, false idea; bubble; self-decit, self-deception; mists of error.    heresy etc. (heterodoxy) 984; hallucination etc. (insanity) 503; false light etc. (fallacy of vision) 443; dream etc. (fancy) 515; fable etc. (untruth) 546; bias etc. (misjudgment) 481; misleading etc. v.. ... show more

Dutch: waan, inbeelding
Polish: mamienie, mylenie, zwodzenie, łudzenie

An illusory feat; considered magical by naive observers.

synonyms: conjuration, conjuring trick, deception, legerdemain, magic, magic trick, thaumaturgy, trick.

Roget 545: deception; falseness etc. 544; untruth etc. 546; imposition, imposture; fraud, deceit, guile; fraudulence, fraudulency^†; covin^†; knavery etc. (cunning) 702; misrepresentation etc. (falsehood) 544; bluff; straw-bail, straw bid [U.S.]; spoof [Slang].    delusion, gullery^†; juggling, jugglery^†; slight of hand, legerdemain; prestigiation^†, prestidigitation; magic etc. 992; conjuring, conjuration; hocus-pocus, escamoterie^†, jockeyship^†; trickery, coggery^†, chicanery; supercherie^†, cozenage^†, circumvention, ingannation^†, collusion; treachery etc. 940; practical joke.    trick, cheat, wile, blind, feint, plant, bubble, fetch, catch, chicane, juggle, reach, hocus, bite; card sharping, stacked deck, loaded dice, quick shuffle, double dealing, dealing seconds, dealing from the bottom of the deck; artful dodge, swindle; tricks upon travelers; stratagem etc. (artifice) 702; confidence trick, fake, hoax; theft etc. 791; ballot-box stuffing [U.S.], barney [Slang]; brace game [Slang], bunko game, drop game [Slang], gum game [U.S.], panel game [U.S.], shell game, thimblerig, skin game [U.S.].    snare, trap, pitfall, decoy, gin; springe^†, springle^†; noose, hoot; bait, decoy-duck, tub to the whale, baited trap, guet-a-pens; cobweb, net, meshes, toils, mouse trap, birdlime; dionaea^†, Venus's flytrap^†; ambush etc. 530; trapdoor, sliding panel, false bottom; spring-net, spring net, spring gun, mask, masked battery; mine; flytrap^†; green goods [U.S.]; panel house.    Cornish hug; wolf in sheep's clothing etc. (deceiver) 548; disguise, disguisement^†; false colors, masquerade, mummery, borrowed plumes; pattes de velours [Fr.].    mockery etc. (imitation) 19; copy etc. 21; counterfeit, sham, make-believe, forgery, fraud; lie etc. 546; a delusion a mockery and a snare" [Denman], hollow mockery.    whited sepulcher, painted sepulcher; tinsel; paste, junk jewelry, costume jewelry, false jewelry, synthetic jewels; scagliola^†, ormolu, German silver, albata^†, paktong^†, white metal, Britannia metal, paint; veneer; jerry building; man of straw.    illusion etc. (error) 495; ignis fatuus [Lat.] etc. 423; mirage etc. 443.    ... show more

Dutch: gegoochel, goochelarij, goochelkunst, hocus-pocus, illusionisme
Polish: trik, trick, sztuczka