illusion

Noun

• an illusory feat; considered magical by naive observers

• the act of deluding; deception by creating illusory ideas

• something many people believe that is false
  • they have the illusion that I am very wealthy
    

• an erroneous mental representation

Related words

• Synonyms: 
  magic trick , conjuring trick , trick , magic , legerdemain , conjuration , thaumaturgy , deception , delusion , head game , fantasy , phantasy , fancy , semblance