What does "illusion" mean?

Illusion: Hence: Anything agreeably fascinating and charning; enchantment; witchery; glamour. Ye soft illusions, dear deceits, arise! Pope.

Additional senses

  1. 2.(Physiol.) A sensation originated by some external object, but so modified as in any way to lead to an erroneous perception; as when the rolling of a wagon is mistaken for thunder. Note: Some modern writers distinguish between an illusion and hallucination, regarding the former as originating with some external object, and the latter as having no objective occasion whatever.
  2. 3.A plain, delicate lace, usually of silk, used for veils, scarfs, dresses, etc. See Delusion. Illusion, Delusion. Illusion refers particularly to errors of the sense; delusion to false hopes or deceptions of the mind. An optical deception is an illusion; a false opinion is a delusion. E. Edwards.

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