noun
a visible appearance of something not present and especially of a dead person
illusions that the superstitious see as apparitions
Synonyms: bogey, eidolon, ghost, ||haunt, phantasm, phantom, revenant, shade, shadow, specter, spectrum, spirit, ||spook, umbra, wraith
Related Word: delusion, hallucination, illusion; corposant, fox fire, ignis fatuus, jack-o'-lantern, marshfire, Saint Elmo's fire, will-o'-the-wisp