apparition

/ˌæpəˈrɪʃən/
noun
  1. A ghost or ghostlike image of a person or thing that appears suddenly.
    • She thought she saw an apparition in the fog, but it was just a tree.
    • The old castle is said to be haunted by an apparition of a knight.
    • In the story, the apparition appears only at midnight.
  2. A sudden or unusual sight that appears unexpectedly.
    • A strange apparition of light danced across the sky during the storm.
    • The mirage was an apparition of water in the middle of the desert.
    • From the ship, the distant island looked like a magical apparition.
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