source: Old Chateau ghost | Pokémon | Know Your Meme

a ghost or ghostlike image of a person:

亡霊, 幽霊(ghost); 奇怪［奇妙］な現象［人］; 幻影

e.g. a headless apparition.

the appearance of something remarkable or unexpected, typically an image of this type:

(亡霊などの突然の)出現(appearance)

e.g. twentieth-century apparitions of the Virgin.

apparitional |-SHənl| adjective

late Middle English (in the sense ‘the action of appearing’): from Latin apparitio(n-) ‘attendance’, from the verb apparere (see appear).