say it: ap-ur-ISH-uhn
apparition is a noun meaning "a ghostly appearing figure". It carries 4 recorded senses.
the appearance of a ghostlike figure
“I was recalled to the present by the apparition of a frightening specter”
an act of appearing or becoming visible unexpectedly
“natives were amazed at the apparition of this white stranger”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for apparition come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.