illusion

Definition

Anything that seems to be something that it is not.

Etymology

From Old French illusion, from Latin illūsiō, from illūdere, from in- (“at, upon”) + lūdere (“to play, mock, trick”). Displaced native Old English dwimmer.

Example Sentences

• "We saw what looked like a tiger among the trees, but it was an illusion caused by the shadows of the branches."
• "Using artificial additives, scientists can create the illusion of fruit flavours in food."
• "You realize the sun don't go down it's just an illusion caused by the world spinning round."