1. a ghost or ghostlike image of a person
2. an unusual or unexpected sight; something that appears suddenly

Examples

• The old castle was said to be haunted by the apparition of a medieval knight.
• She claimed to have seen an apparition of her grandmother in the garden.
• The mysterious figure turned out to be just an apparition created by the fog.
• Local legends tell of apparitions that appear near the ancient burial ground.
• The sudden apparition of a deer in the headlights startled the driver.
• What seemed like a ghostly apparition was merely moonlight filtering through the trees.