Ghost

A ghost is typically defined as the apparition of a deceased person, regularly similar in appearance to that person, and encountered in places he or she frequented, or in association with the person's former belongings. The word "ghost" may also refer to the spirit or soul of a deceased person, or to any spirit or demon.Ghosts are often connected with haunting, which is, according to the Parapsychological Association, "the more or less regular occurrence of paranormal phenomena associated with a particular locality (especially a building) and typically attributed to the activities of a discarnate entity; the phenomena may comprise apparitions, poltergeist disturbances, cold drafts, sounds of steps and voices, and various odours.
Ghosts are controversial phenomena. According to a poll conducted in 2005 by the Gallup Organization, about 32% of Americans consider in the existence of ghosts.The term ghost has been replaced by apparition in parapsychology, because the word ghost is deemed inadequately precise.