Definition for Optical illusion:

• An illusion of vision usually affecting spatial relations.

Synonyms for Optical illusion:

• n.

  •delusion (noun)
  • over sights,
  • mis apprehensions,
  • mis-take,
  • mis-apprehension,
  • mis-takes,
  • over-sight,
  • selfdeception,
  • self deceptions,
  • mis takes,
  • mis apprehension,
  • eidolons,
  • self deception,
  • mis-apprehensions,
  • over-sights,
  • fool paradise,
  • deceptivenesses,
  • mis take,
  • selfdeceptions,
  • eidola,
  • over sight,
  • fools paradise,
  • self-deceptions.
  •ignis fatuus (noun)
  • Will-o-the-wisp,
  • will-o'-the-wisp,
  • will-o'-the-wisps.
  •illusion (noun)
  • mis beliefs,
  • mis conception,
  • ignus fatuu,
  • mis-belief,
  • misimpressions,
  • idolisms,
  • mis-conception,
  • misbeliefs,
  • mis conceptions,
  • mis-beliefs,
  • mis impressions,
  • mis-impression,
  • mis belief,
  • makebelieve,
  • mis-conceptions,
  • figment imagination,
  • paramnesias,
  • mis impression,
  • mis-impressions,
  • hocus pocus.
  •phenomenon (noun)
  • optical illusion.
  •trick on the eyes (noun)
  • vision,
  • trick of light,
  • fata morgana,
  • trick of the eyesight,
  • trick of eyesight,
  • visual fallacy,
  • specter.

• Other synonyms:

  •
  • phantasmagoria,
  • hallucination,
  • simulation,
  • phantom,
  • falsehood,
  • simulacrum,
  • Phantasm,
  • cardboard cut-out,
  • falsity.
  •
  • apparition,
  • fraud,
  • myth,
  • fantasy.
  •
  • sham.
  •
  • fancy.

Hypernym for Optical illusion:

• n.

  • phenomenon
    apparent movement, movement, apparent motion, motion, mirage.

Hyponym for Optical illusion:

• n.

  • phenomenon
    optical phenomenon.